Baldur’s Gate 3 – Keyboard/Mouse Not Working – Issue Fix
Run the Game as Administrator
Ensure that the game is launched with administrator privileges. To install and start the game, please right-click on the shortcut or setup file and select “Run as Administrator”.
Disable Additional Input Devices
Please disconnect any additional input devices. This includes controllers, graphics tablets, etc. Only the keyboard and mouse should remain connected. If you’re using virtual input devices like x360CE or vJoy, disconnect or disable these as well.
Disable Mouse Acceleration
Mouse acceleration or enhanced pointer precision should be disabled. Follow these steps to disable the ‘Enhance pointer precision’ option:
For Windows 10: Press WinKey+R, and in the Run window type: control. After that press Ok, and navigate to Mouse -> Pointer Options, then make sure that Enhance pointer precision is unchecked, and click OK.
For Windows 8.1, 7: Start -> Control Panel -> Mouse -> Pointer Options, then make sure that Enhance pointer precision is unchecked, and click OK.
Disable Touchscreen
If applicable, disable the touchscreen. If you’re using a tablet PC, ensure a keyboard and mouse are connected, then temporarily disable the touchscreen function.
Run the Game in Clean Boot Mode
Start the game in clean boot mode to minimize software interference. Ensure that no third-party applications interfere with the game. Install and run the game in “clean boot mode”. You can find detailed instructions here: http://support.microsoft.com/kb/929135