VMware Workstation 16 slow on Windows 11 - unable to disable Hyper V

[DavidVWon]

Hello, on a Windows 11 host (Intel i912950HX) my vm guest machines are running very slow.

(W11 22H2, VMWare Workstation 16.2.5)

I had a look at the following thread.
https://communities.vmware.com/t5/VMware-Workstation-Pro/VMware-Workstation-16-very-slow-on-Windows-...

All of the actions below were done:
- Hyper-V is disabled in 'Turn Windows Features on/off'
- bcdedit /set hypervisorlaunchtype off was also executed
- the core isolation was disabled
- rebooted

But still when I start my VM in the log file it still detects hyper-V and set the Monitor Mode to ULM.

Any other ideas?

Thanks,

David

[RyanFrewin]

I have also followed the necessary steps to disable Hyper V and my vmware log still says Monitor Mode: ULM.  I actually disabled Hyper V on the Host and the Guest.  Are there any other solutions to fully disable Hyper V and have my vmware log say CPL0?

Running Windows 11

Workstation Pro 16.2.2

[RyanFrewin]

I found this by searching.  The first (2) didn't work for me but the last one did using the PowerShell option.  I rebooted and opened up windows 10 VMware guest and it seems to be faster; however, the log file still says Monitor Mode: ULM.  I will keep everyone posted

How to Disable Hyper-V in Windows 11 [3 Easy Methods] (windowsreport.com)

I found this link and it seemed to speed up my VMWare guest considerably.

VMs with side channel mitigations enabled may exhibit performance degradation (79832) (vmware.com)