Locate and uninstall Windows Product Key

Recently I began preparing a Task Sequence in Microsoft System Center Configuration Manager (SCCM) to upgrade workstations from Windows 8.1 Pro to Windows 10.

A goal of mine was to conserve the product keys we had purchased so they wouldn’t go to waste.

Here is a short Powershell script that could be included as a step in a Task Sequence to accomplish this goal.

$temp = cscript.exe C:\windows\system32\slmgr /dlv
#$temp = Select-String -Path .\license.txt -Pattern "Application ID:"
#$temp = Select-String -InputObject $temp -Pattern "Application ID:"
$temp=Select-String -InputObject $temp -Pattern "Application ID:"
echo $temp
slmgr /upk $temp