Caps Lock Not Working on Windows? Try These Steps

You press the Caps Lock key once, then again, and nothing changes. Your text stays stubbornly lowercase — or worse, you are stuck typing everything in uppercase and cannot turn it off. If you are dealing with caps lock not working on Windows, you are far from alone. This is one of the most common keyboard complaints we see, and it can grind your productivity to a halt when you least expect it.

The frustrating part is that the cause could be almost anything. A crumb lodged under the keycap, a Windows update that silently changed your keyboard settings, or even gaming software like GeForce Experience silently rebinding your Caps Lock to a hotkey you never asked for. We have seen all of these scenarios play out across hundreds of support threads on Reddit, Tom’s Hardware, and Microsoft Answers.

This guide walks you through every fix worth trying in 2026, starting with the simplest solutions and working up to more advanced methods like Registry edits and PowerShell commands. Whether you are on Windows 10 or Windows 11 (including the latest 23H2 and 24H2 builds), we cover the steps that actually work. We will also help you figure out whether your problem is hardware or software so you do not waste time on the wrong fix.

Before we get into the solutions, here is the most important thing to know: most Caps Lock problems are software-related, not physical damage. That means you can almost certainly fix this yourself without buying a replacement keyboard. If your shift key is not working either, the root cause might be related, so keep that in mind as you work through these steps.

Quick Diagnosis: Is It Hardware or Software?

Before you start trying fixes at random, spend two minutes figuring out what type of problem you actually have. This saves time because hardware issues and software issues need completely different approaches. Here is a simple decision tree to follow.

Step 1: Test With an External Keyboard

If you are on a laptop, plug in a USB keyboard or connect a Bluetooth one. Press Caps Lock on the external keyboard. If it works perfectly, your laptop’s built-in keyboard has a hardware problem. If the external keyboard also fails to activate Caps Lock, you are dealing with a Windows-level software issue.

Step 2: Try the On-Screen Keyboard

Press Windows key + Ctrl + O to open the on-screen keyboard. Click the Caps Lock key there. If it toggles correctly and your text responds, the problem is your physical key. If the on-screen Caps Lock also fails, something in Windows is blocking the function.

Step 3: Test in Safe Mode

Restart your computer into Safe Mode and test Caps Lock there. If it works in Safe Mode, a third-party application or driver is causing the conflict. If it still does not work in Safe Mode, the issue is likely at the hardware or Windows system level. We cover Safe Mode and clean boot methods in detail later in this guide.

Quick Reference: What Your Symptoms Mean

• Caps Lock light turns on but text stays lowercase = software conflict or driver issue
• Caps Lock does not respond at all on any keyboard = Windows-level software problem
• Caps Lock works on external keyboard but not laptop keyboard = hardware issue with built-in keyboard
• Caps Lock is reversed (on when it should be off) = keyboard layout or accessibility setting problem
• Caps Lock stopped working after a Windows update = driver or setting changed during update
• Caps Lock works in some apps but not others = application-specific hotkey binding conflict

Key Takeaways

• Most Caps Lock issues are caused by software settings, driver problems, or third-party app conflicts — not broken hardware
• Testing with an external keyboard or the on-screen keyboard quickly tells you whether the problem is hardware or software
• The Windows keyboard troubleshooter can fix many caps lock not working problems automatically
• Accessibility features like Sticky Keys and Filter Keys are a surprisingly common hidden cause
• Third-party software including GeForce Experience, iCue, and Razer Synapse can silently remap Caps Lock without warning
• Registry fixes using ScanCode Map and PowerShell commands can re-enable a disabled Caps Lock key
• Safe mode and clean boot are your best tools for isolating conflicting software
• Brand-specific Fn key combinations on HP, Dell, Lenovo, and ASUS laptops can toggle Caps Lock behavior
• Key remapping tools like SharpKeys and AutoHotkey offer a permanent workaround if your key is physically damaged
• Keeping drivers updated and Windows current prevents most Caps Lock issues from recurring

Why Is Your Caps Lock Key Not Working?

Caps Lock keys stop working for a handful of reasons, and knowing which one applies to your situation makes all the difference. The most common culprit is a software-level change. Something in Windows — whether it is a driver, a setting, or a third-party application — has altered how the Caps Lock key behaves. This frequently happens after Windows updates install overnight, or when you install new keyboard software without realizing it changes key bindings.

Hardware problems are the next most likely cause. Physical debris under the keycap, a worn-out membrane switch, or liquid damage can all prevent Caps Lock from registering. This is especially common on laptops where the keyboard sits exposed to dust, crumbs, and accidental spills. If other keys are also acting up — for instance, if your enter key is not working on your laptop — that strongly points to hardware.

Accessibility settings in Windows are another sneaky cause. Sticky Keys, Filter Keys, and Toggle Keys are designed to help users with motor impairments, but they can activate accidentally if you hold down the Shift key too long or press certain key combinations. When these features are enabled, Caps Lock behavior changes in unpredictable ways.

Finally, third-party software conflicts are more common than most people realize. Gaming peripheral software like Corsair iCue, Razer Synapse, and Logitech G Hub can rebind keys. NVIDIA GeForce Experience is notorious for silently assigning hotkeys that override Caps Lock. We have seen forum threads where users spent days troubleshooting before discovering that GeForce Experience had bound Caps Lock to a “mute microphone” function. We cover all of these scenarios in detail below.

How to Fix Caps Lock Hardware Issues

If your quick diagnosis pointed to a hardware problem, try these physical fixes before considering a keyboard replacement.

Start with cleaning. Power off your computer and grab a can of compressed air. Angle the nozzle under the Caps Lock key and give it several short bursts. Dust, crumbs, and pet hair frequently accumulate under keycaps and block the switch mechanism from making contact. On desktop keyboards, you can often pop the keycap off gently with a flathead screwdriver or keycap puller for more thorough cleaning.

For laptop users, compressed air is usually the safest option since keycaps are more delicate and harder to reattach. Some laptop keyboards use scissor-switch mechanisms that are easy to damage if you pry too hard. If the key feels spongy or unresponsive after cleaning, try pressing it firmly a dozen times in a row. Sometimes the rubber dome beneath the key needs repeated compression to regain its spring.

Check for liquid damage if cleaning does not help. Even a tiny amount of moisture can corrode the contacts under the Caps Lock key over time. Look for sticky residue, discoloration, or keys that feel different from their neighbors. If you suspect liquid damage, the keyboard may need professional repair or replacement.

If you are using a wireless keyboard and Caps Lock is not responding, the issue might be connectivity rather than physical damage. Low batteries, interference from other wireless devices, and outdated Bluetooth drivers can all cause individual keys to stop responding. Our wireless keyboard troubleshooting guide covers these connectivity issues in depth.

Pro Tip: If you have a spare keyboard around, plug it in and test. When the spare keyboard’s Caps Lock works fine but your main keyboard’s does not, you have confirmed a hardware fault. This simple test saves hours of unnecessary software troubleshooting.

How to Troubleshoot Caps Lock Software Problems

Software problems account for the majority of Caps Lock issues we encounter. This section covers the most effective fixes, starting from the easiest and moving toward more advanced methods.

Run the Windows Keyboard Troubleshooter

Windows has a built-in keyboard troubleshooter that can detect and automatically fix common problems. The way you access it depends on your Windows version.

On Windows 10, press Windows key + R, type msdt.exe -id KeyboardDevice and press Enter. The troubleshooter will launch and scan for keyboard problems. Follow the on-screen prompts to apply any fixes it finds.

On Windows 11, especially recent builds like 23H2 and 24H2, this legacy troubleshooter command may not work. Instead, go to Settings > System > Troubleshoot > Other troubleshooters and look for the Keyboard troubleshooter in the list. If you do not see it listed, Microsoft has moved troubleshooting functionality into the Get Help app. Search for “keyboard” in the Get Help app and follow the guided diagnostic.

Update or Reinstall Your Keyboard Driver

Outdated or corrupted keyboard drivers are one of the top causes of caps lock not working on Windows. Right-click the Start button and select Device Manager. Expand the Keyboards section, right-click your keyboard (it may show as “HID Keyboard Device” or similar), and select “Update driver.” Choose “Search automatically for drivers” and let Windows find the best match.

If updating does not help, try uninstalling the driver entirely. Right-click the keyboard in Device Manager, select “Uninstall device,” and confirm. Then restart your computer. Windows automatically reinstalls the keyboard driver on startup, which can resolve corruption that a simple update cannot fix.

Check Accessibility Settings

Accessibility features like Sticky Keys can silently interfere with Caps Lock. On Windows 11, navigate to Settings > Accessibility > Keyboard (on Windows 10, go to Settings > Ease of Access > Keyboard). Make sure the following are turned off:

• Sticky Keys — allows modifier keys to be pressed one at a time instead of held; can interfere with Caps Lock toggling
• Filter Keys — ignores brief or repeated keystrokes; can make Caps Lock seem unresponsive
• Toggle Keys — plays a sound when you press Caps Lock, Num Lock, or Scroll Lock; generally harmless but worth checking

Also disable the shortcut that turns Sticky Keys on when you press Shift five times. This prevents accidental activation in the future.

Reset Keyboard Layout and Language Settings

Sometimes Caps Lock stops working because Windows has switched to a different keyboard layout without telling you. Go to Settings > Time and language > Language and region and verify your preferred keyboard layout is selected. If you see multiple layouts listed, remove any extras you do not use. Pressing Windows key + Space cycles through installed layouts, which is how accidental switches happen.

If your caps lock is reversed — on when it should be off and vice versa — try pressing Ctrl + Shift + Caps Lock simultaneously. This resets the key behavior on many keyboard layouts and has resolved reversed Caps Lock for users on multiple support forums.

Install Windows Updates

Microsoft regularly releases patches that fix keyboard-related bugs. Go to Settings > Windows Update and install any pending updates. This is especially important if your Caps Lock stopped working right after a Windows update — the next update might contain the fix. According to Microsoft support data, over 60% of Caps Lock indicator issues in Windows 11 are resolved by updating to the latest build.

How to Fix Caps Lock Using Registry Editor

If the standard software fixes have not worked, the Caps Lock key might be disabled at the Windows Registry level. A setting called ScanCode Map can programmatically disable or remap any key on your keyboard, including Caps Lock. This is more common than you might think — some group policy configurations and older software installations create ScanCode Map entries that disable Caps Lock system-wide.

Check and Remove ScanCode Map

Press Windows key + R, type regedit, and press Enter to open the Registry Editor. Navigate to the following path:

HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlKeyboard Layout

Look for a value named ScanCode Map in the right pane. If it exists, it means something has remapped your keyboard layout. To restore Caps Lock to its default behavior, right-click the ScanCode Map value and select Delete. Confirm the deletion, then restart your computer for the change to take effect.

Warning: Be very careful in the Registry Editor. Deleting the wrong value can cause system problems. Only delete the ScanCode Map entry — do not modify anything else. Back up the key first by right-clicking “Keyboard Layout” in the left pane and selecting Export.

Re-enable Caps Lock Using PowerShell

You can also use PowerShell to check and reset Caps Lock functionality. Open PowerShell as Administrator (right-click Start and select “Windows Terminal (Admin)” or search for PowerShell, right-click it, and choose “Run as administrator”).

To enable Caps Lock via PowerShell, run this command:

Remove-ItemProperty -Path “HKLM:SYSTEMCurrentControlSetControlKeyboard Layout” -Name “ScanCode Map” -ErrorAction SilentlyContinue

This command removes the ScanCode Map entry if it exists, which restores Caps Lock to its default behavior. Restart your computer after running the command. You can verify the fix by pressing Caps Lock and checking whether it toggles properly.

Disable Caps Lock via Registry (If You Want It Gone)

If your goal is the opposite — you want to permanently disable the Caps Lock key because you keep hitting it by accident — you can create a ScanCode Map entry that disables it. In Registry Editor, navigate to the same Keyboard Layout path, right-click in the right pane, select New > Binary Value, name it “ScanCode Map,” and set its value data to:

00 00 00 00 00 00 00 00 02 00 00 00 00 00 3A 00 00 00 00 00

Restart your computer and Caps Lock will be completely disabled. To re-enable it later, delete the ScanCode Map value as described above.

Third-Party Software Conflicts That Disable Caps Lock

This is one of the most overlooked causes of caps lock not working on Windows, and no mainstream troubleshooting guide covers it thoroughly. Gaming peripheral software, graphics card utilities, and other system-level applications can silently remap your Caps Lock key to serve a different function. You would never know unless you checked the hotkey settings.

GeForce Experience (NVIDIA)

GeForce Experience is perhaps the most common offender. A user on Tom’s Hardware spent days trying to fix their Caps Lock before discovering that GeForce Experience had bound it to “mute microphone” as part of its overlay hotkey configuration. The Caps Lock light even turned on, but text stayed lowercase because GeForce was intercepting the keystroke.

To fix this, open GeForce Experience, click the gear icon (Settings), select the General tab, and look for the “In-Game Overlay” section. Click “Settings” next to it, then navigate to the Keyboard shortcuts. Check whether Caps Lock has been assigned to any function. If it has, change the binding to a different key or disable that hotkey entirely.

Corsair iCue

Corsair’s iCue software lets you remap any key on your Corsair keyboard, and it applies these mappings system-wide — not just in games. If you or someone else accidentally remapped Caps Lock in iCue, it will stop working everywhere. Open iCue, select your keyboard, go to Key Assignments, and verify that Caps Lock is set to its default “Caps Lock” action. Reset the profile if you are not sure what was changed.

Razer Synapse

Razer Synapse has similar remapping capabilities. Launch Synapse, click on your keyboard, and check the Customize tab. Look at the Caps Lock key assignment — if it says anything other than “Caps Lock” or “Default,” it has been remapped. Click on it and restore the default function.

Logitech G Hub

Logitech G Hub can also intercept and remap Caps Lock. Open G Hub, select your keyboard, and navigate to the Assignments section. Check the key mapping for Caps Lock and ensure it has not been reassigned to a macro, multimedia function, or disabled entirely.

Other Software to Check

SteelSeries GG, Alienware Command Center, and even some antivirus programs have been reported to intercept keyboard inputs at the system level. If you have any software installed that manages keyboard settings, hotkeys, or system input, check its configuration. When in doubt, temporarily exit or disable the software and test Caps Lock again.

How to Use Safe Mode and Clean Boot to Diagnose Caps Lock Issues

When you cannot figure out what is blocking Caps Lock, safe mode and clean boot are your best diagnostic tools. They strip away third-party software and non-essential drivers so you can test whether Caps Lock works in a clean Windows environment.

Boot Into Safe Mode

Safe Mode starts Windows with only the most basic drivers and services. If Caps Lock works in Safe Mode but not in normal mode, a third-party application is definitely the culprit. To enter Safe Mode on Windows 10 or 11, go to Settings > System > Recovery and click “Restart now” next to Advanced startup. After the restart, choose Troubleshoot > Advanced options > Startup Settings > Restart. When the menu appears, press 4 or F4 for Safe Mode.

Test Caps Lock in Safe Mode. If it works, you know the problem is a driver or application that loads during normal startup. This narrows your search significantly — you only need to figure out which program is responsible.

Perform a Clean Boot

A clean boot is more targeted than Safe Mode. It disables all non-Microsoft services and startup items while keeping basic Windows functionality running. This lets you selectively re-enable services to pinpoint which one is causing the Caps Lock conflict.

Press Windows key + R, type msconfig, and press Enter. Go to the Services tab, check “Hide all Microsoft services” at the bottom (this is critical — do not skip it), then click “Disable all.” Next, go to the Startup tab and click “Open Task Manager.” Disable all startup items. Click OK and restart your computer.

Test Caps Lock after the clean boot. If it works, re-enable services in small batches and restart between each batch until Caps Lock breaks again. The last batch you enabled contains the problematic service. This method takes some time but is extremely effective for finding the exact cause.

How to Fix Caps Lock Indicator on Windows 11

The Caps Lock indicator — the on-screen notification that briefly appears when you toggle Caps Lock — is separate from the Caps Lock function itself. Your key might work perfectly while the indicator refuses to show. This is a distinct problem that requires different fixes.

Check the Notification Setting

On Windows 11 builds through 22H2, the toggle was at Settings > Accessibility > Keyboard under “Show notifications for Caps Lock.” Starting with Windows 11 23H2 and continuing in 24H2, the path changed. Navigate to Settings > Accessibility > Keyboard and look for “Toggle Keys” or “Show a warning when turning on Caps Lock” — the exact label varies by build. Make sure this option is enabled.

Update Your Display and Keyboard Drivers

The Caps Lock indicator is a visual overlay rendered by your display driver. If your graphics driver is outdated or corrupted, the indicator overlay may fail to appear even though Caps Lock itself works fine. Open Device Manager, expand Display adapters, right-click your GPU, and select “Update driver.” Also update your keyboard driver while you are there.

Use the Manufacturer’s Indicator Tool

Many laptop manufacturers provide their own on-screen indicator software that works independently of Windows. Lenovo has the Lenovo Hotkey Client, HP has HP System Event Utility, and Dell has Dell Optimizer. If you are on a laptop and the Windows Caps Lock indicator does not show, check whether your manufacturer’s utility is installed and running. Sometimes reinstalling or updating this utility restores the indicator.

Install Pending Windows Updates

Microsoft has released multiple patches addressing Caps Lock indicator bugs in specific Windows 11 builds. Go to Settings > Windows Update and install everything available. If your Caps Lock indicator stopped working after an update, check the Windows release health dashboard for known issues with your specific build number. Microsoft sometimes acknowledges these bugs and releases targeted fixes.

Use a Third-Party Caps Lock Indicator

As a last resort, free utilities like CapsLock Indicator and Keyboard Indicator can display an on-screen Caps Lock status that works independently of Windows. These lightweight tools sit in your system tray and show a visual notification whenever Caps Lock is toggled. They are not a fix for the underlying Windows issue, but they solve the practical problem of not knowing whether Caps Lock is on or off.

What to Do When Caps Lock Is Stuck On

A Caps Lock key stuck in the on position is a special kind of frustration. Every sentence looks like you are yelling. Here is what to try.

First, press the Caps Lock key repeatedly — five or six times in quick succession. Sometimes the key mechanism or the electronic switch beneath it gets stuck in one position and needs multiple toggles to reset. If that does not help, press Shift + Caps Lock together. On some keyboard models, this combination forces a Caps Lock state reset that pressing Caps Lock alone cannot achieve.

Open the on-screen keyboard with Windows key + Ctrl + O and click Caps Lock there. If the on-screen version turns it off, the problem is with your physical key. Try cleaning around the key with compressed air or a cotton swab lightly dampened with rubbing alcohol. A physically sticky key often causes Caps Lock to stay on.

Check your accessibility settings next. Sticky Keys is a frequent cause of caps lock stuck on behavior. When Sticky Keys is active, pressing Caps Lock may not register as a toggle but instead as a modifier hold, leaving Caps Lock seemingly stuck. Disable Sticky Keys at Settings > Accessibility > Keyboard and see if the problem resolves.

Forum Insight: A user on Microsoft Answers had Caps Lock stuck on during a work presentation. After trying everything, they discovered that Filter Keys was enabled — likely activated by accident when a book rested on the keyboard. Disabling Filter Keys immediately restored normal Caps Lock behavior.

How to Fix Caps Lock Not Working on Specific Laptop Brands

Some laptop manufacturers implement custom keyboard behaviors that can interfere with Caps Lock. If you are using a laptop from HP, Dell, Lenovo, or ASUS, these brand-specific tips may help.

HP Laptops

HP laptops frequently use a dual-function Fn key setup that can affect Caps Lock. On some HP models, pressing Fn + Caps Lock toggles between the function keys acting as F1-F12 versus media keys. If your Caps Lock stopped working, you may have accidentally pressed this combination. Try pressing Fn + Caps Lock again to toggle back.

Also check HP Command Center or HP System Event Utility for any custom key remapping. Some HP business laptops have a built-in keyboard diagnostic tool accessible through the HP PC Hardware Diagnostics app. Run the keyboard test to see if Caps Lock is registering at the hardware level.

Dell Laptops

Dell laptops with the Dell Optimizer or Alienware Command Center installed may have custom keyboard profiles that override Caps Lock. Open Dell Optimizer, navigate to the Keyboard section, and check for any custom mappings. On Alienware systems, the Alienware Command Center has its own key assignment manager that can rebind Caps Lock.

Some Dell laptops also support Fn key locking, which changes how modifier keys behave. Press Fn + Esc to toggle Fn Lock on or off. If Fn Lock is in the wrong state, it can change how Caps Lock registers on certain Dell models.

Lenovo Laptops

Lenovo ThinkPad users should check Lenovo Vantage for keyboard settings. Some ThinkPad models have a “Fn and Ctrl Key Swap” feature that can also affect how Caps Lock behaves. Open Lenovo Vantage, go to Device settings, and look for Keyboard preferences. Ensure Caps Lock is not remapped or part of any custom scheme.

ThinkPad keyboards also have a well-known issue where the Fn key and Ctrl key positions vary by model. If you recently switched between ThinkPad models, your muscle memory may be hitting the wrong key. Verify which key is actually Caps Lock on your specific keyboard layout.

ASUS Laptops

ASUS laptops with Armoury Crate installed can have custom keyboard profiles that affect Caps Lock. Open Armoury Crate and check the keyboard configuration for any custom key assignments. ASUS gaming laptops in particular may have per-application keyboard profiles that change key behavior when games are running.

On ASUS ROG laptops, check whether “Game Mode” in Armoury Crate has disabled Caps Lock as part of a gaming profile. Disabling the custom profile and reverting to the default keyboard layout usually fixes the issue.

Why Is There No Caps Lock on Keyboard?

Some keyboards — particularly compact, 60%, or 65% layouts — omit a dedicated Caps Lock key entirely. If you are using one of these keyboards, Caps Lock is typically accessed through a Function key combination.

Look for a key labeled “Caps” or showing an “A” icon in a secondary color (usually blue). To activate Caps Lock, you typically hold the Fn key and press that key simultaneously. The exact combination varies by manufacturer, so check your keyboard’s manual or the manufacturer’s website for the correct key combo. If your function key is also not working, you will need to fix that first before you can access Caps Lock.

If your keyboard truly has no Caps Lock function at all — some ultra-compact designs skip it — you have two options. The on-screen keyboard (Windows key + Ctrl + O) always has a working Caps Lock button. For a permanent solution, use a key remapping tool to assign Caps Lock functionality to a key you do not use often. We cover remapping in detail in the next section.

How to Remap Caps Lock Key Using SharpKeys or AutoHotkey

If your Caps Lock key is physically damaged and you need a workaround, or if you want to assign Caps Lock functionality to a different key entirely, remapping tools give you full control. Two free tools handle this well: SharpKeys for a simple graphical interface, and AutoHotkey for more advanced scripting.

Using SharpKeys

SharpKeys is a free, open-source utility that edits the Windows Registry to remap keys. It provides a simple graphical interface so you do not have to edit the Registry manually. Download it from the official GitHub releases page and install it.

Launch SharpKeys and click “Add.” In the left column, select the key you want to remap (for example, the Right Shift key if you want it to function as Caps Lock). In the right column, select “Caps Lock.” Click “Write to Registry” and then restart your computer. The remapped key will now function as Caps Lock.

To undo a remapping, open SharpKeys, select the mapping from the list, click “Delete,” then “Write to Registry” and restart. SharpKeys stores all remappings in the same ScanCode Map Registry entry we discussed earlier, so this is essentially a graphical way to edit that entry safely.

Using AutoHotkey

AutoHotkey is more powerful but requires writing a simple script. Download and install AutoHotkey from autohotkey.com. Right-click on your desktop, select New > AutoHotkey Script, and name it something like “CapsLockRemap.ahk.” Right-click the file and select “Edit Script.”

To remap the Right Shift key to Caps Lock, add this line to the script:

RShift::CapsLock

Save the file and double-click it to run. The script sits in your system tray and will keep the remapping active as long as it runs. To make it permanent, place the script in your Windows Startup folder (press Windows key + R, type shell:startup, and press Enter to open it, then copy your script there).

AutoHotkey can do much more than simple remapping. You can create scripts that toggle Caps Lock on double-tap of another key, disable Caps Lock entirely except in specific applications, or create custom shortcuts that simulate Caps Lock behavior without using the key at all.

How to Prevent Caps Lock Problems in the Future

Once you fix your Caps Lock issue, a few preventive habits can keep it from coming back.

Keep your keyboard clean. Use compressed air weekly to blow dust and debris from between the keys. For laptops, avoid eating over the keyboard and consider a silicone keyboard cover if you work in dusty environments. Physical debris is the number one preventable cause of keyboard problems.

Update your drivers and Windows regularly. Set Windows to automatically install updates. Outdated keyboard drivers are responsible for a significant portion of Caps Lock problems, especially after major Windows version upgrades. Check Device Manager monthly for any yellow warning icons next to your keyboard.

Be mindful of accessibility settings. Sticky Keys activates when you press Shift five times in a row, which can happen accidentally during intense typing. Go to Settings > Accessibility > Keyboard and disable the shortcut that activates Sticky Keys. This one setting change prevents a huge category of Caps Lock confusion.

Review gaming and peripheral software settings after updates. GeForce Experience, iCue, Razer Synapse, and Logitech G Hub sometimes reset key bindings during their own updates. Make a habit of checking your key assignments in these tools after they update.

Pro Tip: Create a system restore point before installing major updates or new software. If your Caps Lock stops working after a change, you can restore your system to when everything worked. To create a restore point, press Windows key + R, type sysdm.cpl, go to the System Protection tab, and click “Create.”

Frequently Asked Questions

Conclusion

Caps Lock problems are annoying, but as this guide shows, they are almost always fixable without spending money on a replacement. The key is knowing where to start. Test with an external keyboard or the on-screen keyboard first to determine whether you are dealing with hardware or software. From there, work through the fixes that match your situation — driver updates and accessibility settings for simple software issues, Registry and PowerShell commands for stubborn system-level problems, and clean boot diagnostics when a third-party application is the hidden culprit.

The biggest takeaway from all the forum threads and support cases we reviewed is this: check your third-party software. GeForce Experience, iCue, Razer Synapse, and Logitech G Hub are responsible for more caps lock not working on Windows complaints than most people realize. A two-minute check of your hotkey bindings can save hours of frustration.

If you are still having keyboard trouble after trying everything in this guide, the problem may extend beyond Caps Lock. Check out our guides on the ESC key not working and function key issues for additional troubleshooting steps that apply to broader keyboard problems.