management-scripts/Fix-WindowsUpdate.ps1

## This is the folder we need to rename
$TARGET_DIR = "${Env:WinDir}\SoftwareDistribution"

## This is what we're renaming it to
$DEST_DIR = "${Env:WinDir}\SoftwareDistribution.old"

## Delete any existing folder from a previous execution of this script
Write-Output "Deleting ""${DEST_DIR}"""
Try { Remove-Item $DEST_DIR -Recurse -Force -ErrorAction SilentlyContinue }
Catch { Write-Error $_.Exception.Message }

## Stop Background Intelligent Transfer Services and Windows Update
Control-Service -Stop -Name BITS
Control-Service -Stop -Name wuauserv

## Rename the SoftwareDistribution folder, forcing Windows Update to recreate all metrics and redownload all updates
Write-Output "Renaming ""${TARGET_DIR}"" to ""${DEST_DIR}"""
Try { Rename-Item -Path $TARGET_DIR -NewName $DEST_DIR -Force }
Catch { Write-Error $_.Exception.Message }

## Start Windows Update and Background Intelligent Transfer Services
Control-Service -Start -Name BITS
Control-Service -Start -Name wuauserv

## Delete SoftwareDistribution.old from this execution of this script
## Comment this section out if you want to leave the renamed folder there for some reason,
##  but keep in mind this folder can be very large and takes up a lot of space.
Write-Output "Deleting ""${DEST_DIR}"""
Try { Remove-Item $DEST_DIR -Recurse -Force -ErrorAction SilentlyContinue }
Catch { Write-Error $_.Exception.Message }

## Force the Windows Update client to check for new updates
Write-Output "Resetting WSUS authorization and starting update detection"
Try { Start-Process "${Env:WinDir}\System32\wuauctl.exe" -ArgumentList "/resetauthorization /detectnow" }
Catch { Write-Error $_.Exception.Message }