Article ID: 5777, created on Nov 23, 2008, last review on May 11, 2014


If keyboard stoped working after virtual machine was upgraded to Parallels Desktop version 4, please, perform the following operations:

1. Download and install the latest Parallels Desktop build available fom Parallels official web-site:

2. If the latest build was installed, but keyboard still does not work, please,

- Start the virtual machine, but do not press any keyboard button when logged in - use mouse only;

- Open Windows Device Manager (Start -> Control Panel -> System -> Hardware -> Device Manager)

- Right-click the "Unknown Device" under Keyboards node and choose "Properties"

- Select "Update driver" and follow the wizard instructions.

- Do not use the keyboard unless the virtual machine is restarted

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