CPU Hot Plug not working after migrating Windows VM from VMware

[ankur.kumar]

I migrated a Windows VM from VMware to Proxmox.
RAM hot plug works fine, but CPU hot plug does not. Virtio drivers are already installed inside the VM.

CPU is added from Proxmox UI, but Windows does not detect it.

Any idea what I am missing or what to check next?

 

[fireon]

Please post your VM-Config:

qm config <vmid>

What Windows Version do you use exactly?

 

[Magnus-mercer]

What is your Windows version?