[Solved] Windows 10 not recognizing additional cores


New Member
Jun 30, 2019

I want to add 2 cores to a Windows 10 Pro VM i installed with 2 cores. My Xeon has 8 cores.
I shut down the VM, modify the CPU to add 2 cores, restart the VM but Windows does not detect the additional cores.

Am I doing something wrong?

Best regards,
Restart isn't enough, you have to stop the VM and start it again. Take a look at the PVE GUI, there you will see the pending changes.
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Thank you for your reply. Indeed stoping the machine in full flight was what was needed. Shutting it down the restarting it was not enough.


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