Windows 10: Uninstall Hyper V failed

Hi gurus,

I am trying to uninstall Hyper V using Optionalfeatures.exe in Admin mode but failed with an error code 0x800f0831.

When chasing the error, I tried manual removal

Disable-WindowsOptionalFeature -Online -FeatureName Microsoft-Hyper-V-All

Having strong doubts about a corrupted Windows package, I came across couple of logs when unsuccessfully run

Dism /Online /Cleanup-Image /RestoreHealth

Dism.exe /online /Cleanup-Image /StartComponentCleanup

sfc /scannow


A capture of error flags from CBS.log are below:


2020-05-21 03:54:28, Info CBS Store corruption, manifest missing for package: Package_49_for_KB4525237~31bf3856ad364e35~amd64~~10.0.1.8

2020-05-21 03:54:28, Error CBS Failed to resolve package 'Package_49_for_KB4525237~31bf3856ad364e35~amd64~~10.0.1.8' [HRESULT = 0x800f0831 - CBS_E_STORE_CORRUPTION]

2020-05-21 03:54:28, Info CBS Mark store corruption flag because of package: Package_49_for_KB4525237~31bf3856ad364e35~amd64~~10.0.1.8. [HRESULT = 0x800f0831 - CBS_E_STORE_CORRUPTION]

2020-05-21 03:54:28, Info CBS Failed to resolve package [HRESULT = 0x800f0831 - CBS_E_STORE_CORRUPTION]


This log clearly shows a corrupted KB.

My Questions are:

1- Need a confirmation that the corrupted KB clearly is the root cause.

2- Need a solution?

:)

 

Even after Uninstalling Hyper-V - msinfo32 shows "A hypervisor has been detected"

Hi,

To address your concern, we suggest that you disable the Hyper V services. Kindly follow the steps below:

• Type Services on the search bar.
• Right click one Hyper V service, then select Properties.
• On Startup type, choose Disabled.
  
  
• You have to disable all the Hyper V services one at a time by following the same steps.

If the issue persists, we suggest that you check out your post on TechNet (IT Pro’s) to make sure you get better answer.



Let us know if you need further assistance.

 

Hyper-V Virtual Machines Fail to Start and Initialize after Windows 10 Upgrade from Windows 8.1

yeah those and the ones in the link

still getting the could not start and failed to initialize errors.

I did happen to check the system requirements listed by M$ for hyper-v on windows 10 and it does not list any video requirements or say anything about remoteFX, which makes the error I am seeing confusing.

I also ran the systeminfo command while hyper-v was uninstalled, and the lines that needed to be true in order for hyper-v to work were all yes. my next step I suppose, is to go over to my mom's system and see if it will run hyper-v

 

Hyper-V uninstallation

Press Windows key + R

Type: optionalfeatures.exe

Hit Enter

Uncheck Hyper-V in the list

Click OK

Restart if prompted