How to fix error error-too-many-sem-requests in Windows 11

Solution Steps

1. 1 Press Ctrl+Shift+Esc to open Task Manager. Go to the 'Processes' tab and sort by CPU or Memory to identify any process using excessive resources. Right-click on any suspicious process and select 'End task'. This frees up semaphore resources.
2. 2 Press Windows key + R, type 'msconfig', and press Enter. In the 'Boot' tab, check 'Safe boot' and select 'Minimal'. Restart. Safe mode loads only essential drivers and services, which can help determine if a third-party service is causing the issue.
3. 3 While in Safe Mode, run 'sfc /scannow' and 'DISM /Online /Cleanup-Image /RestoreHealth' as described in the previous error. This repairs system files that might be causing the problem.
4. 4 After repairs, restart normally. Press Windows key + X, select 'Shut down or sign out', then 'Restart'.
5. 5 If the error persists, increase the system's semaphore limit. Press Windows key + R, type 'regedit', and press Enter. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager. Look for a DWORD value named 'SemaphoreLimit'. If it doesn't exist, right-click, select New → DWORD (32-bit) Value, and name it 'SemaphoreLimit'. Set its value to a higher number, like 2048 (decimal). Restart. This is an advanced step; be cautious.