HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\i8042prt entry and change its value to Restart your PC. Update BIOS/UEFI Settings
Many modern motherboards disable the PS/2 port by default to speed up boot times. microsoft ps 2 mouse driver download windows 11
| Issue | Fix | |-------|-----| | Mouse not detected at all | Restart with mouse connected. PS/2 requires a cold boot. | | Works in BIOS but not Windows | Enable PS/2 mouse in BIOS under or Legacy USB Support . | | Yellow exclamation in Device Manager | Right-click → Uninstall device → Restart PC. | | Driver error code 10 or 39 | Run sfc /scannow in Command Prompt as admin. | | After Windows update | Roll back driver in Device Manager or use System Restore. | PS/2 requires a cold boot
Microsoft does not offer a standalone "setup.exe" file for PS/2 mouse drivers on their website. The driver is delivered exclusively through Windows Update. | | Driver error code 10 or 39
If you rely on a Microsoft PS/2 mouse for daily work, consider transitioning to a USB or wireless mouse. If you need PS/2 for latency-sensitive tasks (e.g., competitive retro gaming), the built-in driver will serve you well without any external downloads.
If your mouse isn't working, you likely need to force an installation or update. Here are the three legitimate methods to get the driver you need.