Solved from applying this file (hopefully, nothing malicious in it)
https://www.tenforums.com/general-support/131146-cannot-install-msi-files-anymore-2.html#post1617650
Good day all,
I’m running Windows Server 2016 on a VPS.
All of a sudden, I cannot install .msi files anymore.
I tried a few things as a quick fix but no success. Any idea how to resolve this issue ? I’m clueluess and would like to avoid formatting/reinstalling the OS
Thanks in advance !