NumLock is sent in the virtual machine every time when switching focus to the virtual machine window

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Symptoms

Cause

This is a by-design behavior used for synchronization of numeric pad state between Mac and VM.

Resolution

You can change the key used for the synchronization or disable this feature executing the following commands in Terminal ( Finder > /Applications/Utilities/Terminal):

Quit Parallels Desktop before executing commands. Otherwise changes will not take affect.

Note the changes will be applied to all virtual machines running on the Mac.

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