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Keyboard does not work in Windows virtual machine

APPLIES TO:
  • Parallels Desktop 10 for Mac Home Edition

Symptoms

  • Keyboard does not work in Windows virtual machine.
  • In Device Manager (open Control Panel > System and Security > Administrative Tools > Computer Management > Device Manager) keyboard and mouse are marked with the yellow exclamation mark.
  • When right-clicking any of this devices > Properties, the Device status is "A driver (service) fir this device has been disabled. An alternative driver may be providing this functionality. (Code 32)":

Cause

The system function driver for PS/2-style keyboard and mouse devices is disabled.

Resolution

  1. Start On-Screen Keyboard to follow further steps from Control Panel > Ease of Access > Ease of Access Center.

  2. Open Registry Editor by clicking win+r combination, then typing regedit in the Run dialog and clicking OK.

  3. Navigate to the following key:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\i8042prt
    
  4. Change Start value to 1 or 3:

  5. Restart virtual machine.

For additional information about modifying "..\services" branch of Windows Registry, please refer to this Microsoft article.




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