Windows 10下Ctrl+Shift+End快捷键失效问题求助

Hey there, let's dig into why this shortcut keeps breaking on you—your workaround of switching languages, logging out, and switching back to US input gives us some solid hints about the root causes. Here are the most likely culprits:

• Input Method Shortcut Conflict
  Since switching languages temporarily fixes the issue, this is the top suspect. Many non-US input methods bind the Ctrl+Shift key combo to switching between input languages or triggering their own features. When this happens, the system prioritizes the input method's shortcut over the Ctrl+Shift+End command you're trying to use, effectively blocking it.

• Corrupted System Shortcut Registration
  Windows stores shortcut mappings per user session, and sometimes these registrations get messed up—usually from a crashed process (like explorer.exe or a background service) or a botched system update. Logging out and back in resets your user session's shortcut registry, which is why that fixes it temporarily.

• Third-Party Software Interception
  Tools like window managers, screenshot apps, antivirus suites, or even productivity tools often listen for global shortcuts to trigger their own functions. If one of these apps (especially one you recently installed or updated) has a rule that intercepts Ctrl+Shift+End, it'll block the shortcut across all apps.

• CTFmon.exe Service Glitch
  ctfmon.exe is Windows' core process for handling input methods and text services. If this process hangs, fails to start properly, or has permission issues, it can mess up how input-related shortcuts (like your Ctrl+Shift+End) are processed. Logging out restarts this service, which is why your workaround works.

• Damaged User Profile Configuration
  Your user account's input method or shortcut configuration files might be corrupted. When you log out, Windows reloads these configs from a clean state, but over time the corrupted files can cause the issue to reoccur.

A quick first step to test: Check your input method settings (go to Settings > Time & Language > Language > Keyboard) and see if any input method has a shortcut tied to Ctrl+Shift or Ctrl+Shift+End. If you find one, reassign it to a different combo and see if the problem goes away.

内容的提问来源于stack exchange，提问作者marts