Forum Discussion
jespinoza_vt
Mar 05, 2024Brass Contributor
Why is Add-WindowsCapability so slow for RSAT?
We install RSAT for our technicians by using: Get-WindowsCapability -Name RSAT* -Online | Add-WindowsCapability -Online The download/install is incredibly slow, averaging about ~15 minutes...
ViperThunder
Aug 26, 2026Copper Contributor
It takes almost an hour to install the .NET 2.0 feature. It takes 30 minutes+ to install the RSAT AD LDS feature.
This isn't just on Windows 11 either. On Server 2025 (and 2016 and 2019 too), it takes over 2 hours to install the IIS feature and several modules via Server Manager. This is on a blazing fast server with NVME drives and a good Xeon processor.
The reasons to move to Linux keep adding up.
Please fix the windowsCapability / windowsFeature stuff. This has been going on for years.
- MKelly1240Aug 26, 2026Brass Contributor
You are better off downloading the Features CAB file and installing locally from it. If you got RSAT features in less than days (and I mean plural) you are doing good. Mine took days. With the local copy of the cab for the install, it was minutes.