Quick answer: When you can’t type in the Windows search bar but the keyboard works in other apps, the text input process (ctfmon.exe) has usually stopped. Press Win + R, type ctfmon.exe and press Enter, then try search again. If that doesn’t help, end SearchHost.exe in Task Manager, restart File Explorer and restart the Windows Search service.
Applies to: Windows 11 and Windows 10, when clicking the search box on the taskbar or in Start opens it but typed letters don’t appear.
In this guide
- First: check whether the keyboard works elsewhere
- Fix 1: Start ctfmon.exe
- Fix 2: Restart the search process and File Explorer
- Fix 3: Make sure ctfmon starts at sign-in
- Fix 4: Restart the Windows Search service
- Fix 5: Check keyboard layouts and input languages
- Fix 6: Repair Windows files and install updates
- Fix 7: Test a new user account
- Related guides
- Frequently asked questions

First: check whether the keyboard works elsewhere
Open Notepad or a browser and type a few words. If nothing types anywhere, the problem is the keyboard itself: reconnect it, replace the batteries or try another USB port. If typing works everywhere except search (and often Start, the Microsoft Store or Settings boxes), carry on with the fixes below.
Also try pressing Win + S to open search directly, and sign out and back in once. That alone often fixes a stuck search box.
Fix 1: Start ctfmon.exe

ctfmon.exe (shown as CTF Loader in Task Manager) handles text input for modern Windows apps, including the search box. When it isn’t running, those boxes stop accepting typing while classic apps keep working.
- Press Win + R to open Run.
- Type
ctfmon.exeand press Enter. Nothing visible happens. - Click the search box and try typing again.
If you can’t type in the Run box either, press Ctrl + Shift + Esc to open Task Manager, select Run new task, type ctfmon.exe and select OK.
Fix 2: Restart the search process and File Explorer
- Press Ctrl + Shift + Esc to open Task Manager.
- Go to the Details tab and find SearchHost.exe (Windows 11). On Windows 10 it’s SearchApp.exe, or SearchUI.exe on older versions.
- Right-click it and select End task. Windows starts it again the next time you open search.
- On the Processes tab, right-click Windows Explorer and select Restart. The taskbar disappears for a moment and comes back.
If the taskbar doesn’t come back, use Run new task with explorer.exe. For a PC that is stuck on a black screen after this, see Windows black screen: how to fix it.
Fix 3: Make sure ctfmon starts at sign-in
If Fix 1 works but the problem returns after every restart, the scheduled task that starts the text input process may be disabled.
- Search is broken, so press Win + R, type
taskschd.mscand press Enter. - In the left pane, expand Task Scheduler Library > Microsoft > Windows > TextServicesFramework.
- If MsCtfMonitor shows as Disabled, right-click it and select Enable.
- Restart the PC and test search.
Tweaking or “debloat” tools sometimes disable this task, so check them if it keeps getting turned off.
Fix 4: Restart the Windows Search service
- Press Win + R, type
services.mscand press Enter. - Find Windows Search. Its Startup type should be Automatic (Delayed Start) or Automatic.
- Right-click it and select Restart (or Start if it isn’t running).
This service builds the search index. It mainly affects results rather than typing, but restarting it clears problems where search freezes as soon as you type. If your version of Windows still offers a Search and Indexing troubleshooter under Settings > System > Troubleshoot > Other troubleshooters (Windows 10: Update & Security > Troubleshoot), run it too.
Fix 5: Check keyboard layouts and input languages
If several languages or keyboards are installed, the search box can switch to an input method that doesn’t produce the letters you expect, such as an IME waiting for composition.
- Look at the language indicator next to the clock (for example ENG). Press Win + Space to switch to your normal keyboard.
- To remove layouts you don’t use, go to Settings > Time & language > Language & region, select the three dots next to a language, then Language options and remove the extra keyboard under Keyboards.
Fix 6: Repair Windows files and install updates

Damaged system files can break search, Start and other built-in apps. Open Command Prompt as administrator (use Run new task in Task Manager with cmd and tick Create this task with administrative privileges) and run:
DISM /Online /Cleanup-Image /RestoreHealth
sfc /scannow
If SFC reports that it can’t repair something, follow this SFC and DISM guide. Then install all updates from Settings > Windows Update; Microsoft has fixed several search box bugs in cumulative updates. If the Settings page won’t open, you can run Windows Update from the command line.
Fix 7: Test a new user account
If nothing above works, check whether the problem is limited to your profile. Go to Settings > Accounts > Other users (Windows 10: Family & other users), add a local account, sign in to it and try search. If search works there, your original profile is damaged; moving your files to the new account is often quicker than repairing it. If search fails in the new account too, an in-place repair (reinstalling Windows over itself while keeping files and apps) is the next step.
Other input glitches, such as a pointer that vanishes, have their own fixes: see mouse cursor disappears in Windows.
Related guides
- Windows Resource Protection could not perform the requested operation (SFC and DISM)
- How to run Windows Update from the command line
- Mouse cursor disappears in Windows 11/10: how to fix it
- Windows black screen: how to fix it
Official sources: for more detail, see Microsoft’s own documentation:
Frequently asked questions
Why can I type everywhere except the search bar?
The search box is a modern Windows app that depends on the text input service, ctfmon.exe. Classic programs like Notepad don’t, so they keep working when it stops.
Is ctfmon.exe safe?
Yes, when it runs from C:\Windows\System32. It’s part of Windows. A file with the same name in another folder is suspicious and worth a malware scan.
Will rebuilding the search index fix typing?
Rarely. Rebuilding the index (in Control Panel > Indexing Options > Advanced > Rebuild) helps when search returns wrong or missing results, not when you can’t type at all.
Does this also fix the Start menu search?
Usually. Start and taskbar search use the same search app, so the same fixes apply to both.
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