Medium
Operating Systems
✓ Solution Verified by Community (0+ upvotes)
How to fix error error-sem-owner-died in Windows 11
ERROR_SEM_OWNER_DIED = 105
Fix based on community reports and expert analysis. Last verified: 2026-08-13
· How we verify fixes
| Error Code | error-sem-owner-died |
|---|---|
| Affected System | Windows 11 (Microsoft) |
| Difficulty | Medium |
| Estimated Time | 15 min |
| Requires Admin Rights | ⚠️ Yes |
| Requires Reboot | 🔄 Yes |
Solution Steps
- 1 Press Ctrl+Shift+Esc to open Task Manager. Look for any processes that are not responding. Right-click on them and select 'End task'. This clears any stuck semaphores.
- 2 Press Windows key + R, type 'cmd', and press Ctrl+Shift+Enter to open Command Prompt as administrator. Type 'taskkill /F /IM processname.exe' (replace 'processname.exe' with the actual process name) and press Enter. This forcefully kills the process and releases its semaphores.
- 3 Run 'sfc /scannow' and 'DISM' to repair any system file corruption that might be causing crashes.
- 4 Restart your computer to clear all semaphores.
- 5 If the error occurs with a specific application, check for updates or reinstall the application. Right-click on the application's shortcut and select 'Run as administrator' if it requires elevated privileges.
🔍 Didn't work? Enter your GPU and CPU for hardware-specific advice:
🔧 Still having issues?
Describe your exact problem to Error Buddy and get a personalized fix in seconds.
🛠️ Try Error Buddy — It's Free