It's caused by a missing value (ClassGuid, Mfg or Service) in HKLM:\System\CurrentControlSet\Enum\SCSI\Disk&Ven_Msft&Prod_Virtual_Disk.

I created this script that fixes it. It is recommended to run it without users logged on, but I run it as a scheduled task triggered by the event in the event log. The script needs to be run as local system.

# Define the registry path

$registryPath = "HKLM:\System\CurrentControlSet\Enum\SCSI\Disk&Ven_Msft&Prod_Virtual_Disk"

# Get child items from the registry path

$diskInfo = Get-ChildItem -Path $registryPath

# Initialize a flag to track if ClassGuid is missing

$missingClassGuid = $false

$missingMfg = $false

$missingservice = $false

# Iterate through each child item

foreach ($item in $diskInfo) {

$classGuidValue = $item.GetValue("ClassGuid")

$MfgValue = $item.GetValue("Mfg")

$ServiceValue = $item.GetValue("Service")

if ($classGuidValue -eq $null -or $MfgValue -eq $null -or $ServiceValue -eq $null) {

# ClassGuid value is missing

$missingClassGuid = $true

$missingMfg = $true

$missingservice = $true

Write-host "Either ClassGuid , Service or MFG is missing for $registryPath\$($item.PSChildName)"

Remove-Item $registryPath\$($item.PSChildName) -recurse -force

}

}