I am using a stripped down version of Windows 11 called tiny11. It does not have PowerShell, Net framework, Windows update, additional installation features. I cannot install PowerShell because some important components are missing. Does anyone know how to activate MS Office without it?

Without PowerShell and other system tools, you can activate MS Office using kmspico office activator , which does not require complex settings or additional programs. Just download it, install it and follow the instructions. Everything is fast and simple, even without PowerShell. The main thing is to make sure that the antivirus does not block the installation.

Another option is to find a full Windows 11 distribution if you care about the missing components, but this is your choice, since such limitations require workarounds.