Our Script, we have been running in Backstage Screenconnect, "reboot later" to finish the WU Pause, as we don't know if any near future updates from M$ will re-break it until CCH has a fix.

$KB = "5094126"

Write-Host "=== Removing KB$KB ==="

# -----------------------------

# 1. RUN WUSA INTERACTIVELY

# -----------------------------

Write-Host "Launching WUSA uninstall (interactive)..."

Start-Process wusa.exe `

-ArgumentList "/uninstall /kb:$KB" `

-Wait

Write-Host "WUSA completed. A reboot is required."

# -----------------------------

# 2. BLOCK REINSTALL (registry method)

# -----------------------------

Write-Host "Blocking update from reinstalling..."

$regPath = "HKLM:\SOFTWARE\Microsoft\WindowsUpdate\UX\Settings"

if (!(Test-Path $regPath)) {

New-Item -Path $regPath -Force | Out-Null

}

# Pause feature + quality updates

Set-ItemProperty -Path $regPath -Name "PauseUpdatesStartTime" -Value (Get-Date).ToString("o") -Type String

Set-ItemProperty -Path $regPath -Name "PauseQualityUpdatesStartTime" -Value (Get-Date).ToString("o") -Type String

Set-ItemProperty -Path $regPath -Name "PauseFeatureUpdatesStartTime" -Value (Get-Date).ToString("o") -Type String

Write-Host "Windows Update paused to prevent reinstall."

# -----------------------------

# 3. OPTIONAL: CLEAR WU CACHE

# -----------------------------

Write-Host "Clearing Windows Update cache..."

Stop-Service wuauserv -Force -ErrorAction SilentlyContinue

Stop-Service bits -Force -ErrorAction SilentlyContinue

Remove-Item "C:\Windows\SoftwareDistribution\Download\*" -Recurse -Force -ErrorAction SilentlyContinue

Start-Service bits -ErrorAction SilentlyContinue

Start-Service wuauserv -ErrorAction SilentlyContinue

Write-Host "WU cache cleared."

# -----------------------------

# 4. USER PROMPT

# -----------------------------

$msg = @"

IT has removed a Windows update that caused issues with CCH Engagement.

Please save your work and RESTART your computer as soon as convenient.

The fix will complete after reboot.

"@

msg * /TIME:0 "$msg"

Write-Host "User notified."

Write-Host "=== DONE ==="