I am posting this as I did not find any direct references to my issue, some similar ones helped get me on the right track.

My issue was that recently a few of my VM's both Standalone and Linked-clones began running very slowly and/or exhibited unstable behavior with various error messages application & OS windows not opening or taking minutes to open.

I was able to resolve this after several hours troubleshooting to be the Windows Subsystem for Android (WSfA) needing the BCD setting hypervisorlaunchtype auto, as the WSfA requires Hyper-V to run

To turn off the Hyper-V, I ran the following command under an elevated command prompt and then rebooted:

bcdedit /set hypervisorlaunchtype off

To turn Hyper-V back on use:

bcdedit /set hypervisorlaunchtype auto

Unfortunately this means whilst this is off, I cannot use any of my Android apps on Windows e.g. Audible, which is no longer developed for Windows and the Windows store is now installing the WSfA and the Amazon Store Android app for Audible.

I am sure there will be many more apps that are currently multi-platform moving from being Windows apps to Android so this will become more of an issue in the near future, one that could start users looking again at Hyper-V for Windows instead, unless a resolution for this is found.

VMware Workstation Pro 17.0.1 running on Windows 11 Pro with AMD Ryzen 9 5950X, 128GB, DDR4. M.2 NVME Storage.