Hi everyone
Today I wanted to talk a problem I seen on newer Windows Server 2019 in a RD setup.
Some user were having problem with a GPO for software installation (per user).
After some diagnostic I found on all my 2019 that the MSI system is restircted now by default.
If you stumble upon this bug;

Then you must be like me, and you have a registry to change.
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Installer]
“DisableMSI”=dword:00000000
Now it should work.