- Added new variable $installationType which uses $WindowsRelease to determine Server or Client. If $installationType is Server, $WindowsRelease version is used to set $WindowsVersion to the appropriate version (1607, 1809, 21H2)
- Fixed an issue where the recovery partition wouldn't be created on server OSes due to winre.wim being hidden. Never saw this on client OSes even though it also was hidden IIRC.
- Removed verbosity for Optimize-Volume as it was outputting when -verbose was not specified.
- Modified some search strings for .NET CUs when installing on Server OS
- Included SSU for Windows Server 2016 as it's mandatory
- Added some error checking for Server 2019 and 2022 CU installations when CU fails due to lack of SSU. If you run into this error, you're using old media and should use the latest. Always use the latest ISO if you can.
- Add parameter $AllowVHDXCaching
- Adds the ability to cache VHDX files together with their configuration
- This should roughly cut the build time in half as long as there are no new patches released since the last cached VHDX file
- Updated MU Catalog search
- Search now includes searching for Windows Server updates
Has been verified to work for Windows Server 2022 and Windows Server 2025 only.
- Update Get-WindowsVersionInfo
- Server Standard is now called 'Srv_Std'
- Server Datacenter is now called 'Srv_Dtc'
- 17763 is matched as Windows Server 2019
- 20348 is matched as Windows Server 2022
- 26100 is matched as Windows Server 2025
- other versions are matched as $DisplayVersion as a fallback
Please remember to update the Windows Server version of 2025 in case it changes until release.
- Update Get-LatestWindowsKB to support searching for Windows Server updates
- Improve the HTML regex to return a more precise match by using the $WindowsRelease variable for lookbehind based searching
- Fixed an issue with UWP apps downloaded via Winget weren't being fully installed. Added /StubPackageOption:installfull to the dism command
- Fixed an issue with Surface Drivers not downloading
- Check for Prefixes.txt file and copy to the USB drive if it exists
- Perform better validation for PPKG, Unattend, Autopilot json, and drivers
- Comment out the Windows Security Platform update as the file has been removed from the MU Catalog.
JonasKloseBW