Plugin can't be installed

good morning everyone, I’m writing this post because I’ve been looking for information on my problem for 2 days but I haven’t found any solution.
I updated kicad from version 8 to 9 and after installing it I got several errors telling me that it wasn’t possible to create some folders and subfolders, in particular all those contained in C:\Users<my_user_name>\Documents\KiCad\9.0\ and all its subfolders. At this point I created them manually and the error never came back. unfortunately, however, I can’t install any plugins because if I try from the plugin manager it tells me that it wasn’t possible to extract the zip packages, if I try to install the plugins manually it tells me that the package doesn’t contain any valid metadata.json files even though the file is inside the package. what can I do?

Unzip and place them manually in the path “C:\Users<my_user_name>\Documents\KiCad\9.0\3rdparty\plugins”

There might be issues if you’ve ever ran KiCad as Administrator.

Rename/delete C:\Users<my_user_name>\Documents\KiCad\9.0\, then try again if the plugin manager works.

15:41:42: Directory ‘C:\Users\nicol\Documents\KiCad’ couldn’t be created (error 2: Impossibile trovare il file specificato.)
15:41:42: Directory ‘C:\Users\nicol\Documents\KiCad’ couldn’t be created (error 2: Impossibile trovare il file specificato.)
15:41:42: Directory ‘C:\Users\nicol\Documents\KiCad’ couldn’t be created (error 2: Impossibile trovare il file specificato.)
15:41:42: Directory ‘C:\Users\nicol\Documents\KiCad’ couldn’t be created (error 2: Impossibile trovare il file specificato.)
15:41:42: Directory ‘C:\Users\nicol\Documents\KiCad’ couldn’t be created (error 2: Impossibile trovare il file specificato.)
15:41:42: Directory ‘C:\Users\nicol\Documents\KiCad’ couldn’t be created (error 2: Impossibile trovare il file specificato.)
15:41:42: Directory ‘C:\Users\nicol\Documents\KiCad’ couldn’t be created (error 2: Impossibile trovare il file specificato.)
15:41:42: Directory ‘C:\Users\nicol\Documents\KiCad’ couldn’t be created (error 2: Impossibile trovare il file specificato.)
these are the errors that appear when I open for the first TIME after installation. I have always started everything as administrator…

tried but did’t work

Remove it again and don’t start KiCad as administator.

same error…
17:32:00: Directory ‘C:\Users\nicol\Documents\KiCad’ couldn’t be created (error 2: Impossibile trovare il file specificato.)
17:32:00: Directory ‘C:\Users\nicol\Documents\KiCad’ couldn’t be created (error 2: Impossibile trovare il file specificato.)
17:32:00: Directory ‘C:\Users\nicol\Documents\KiCad’ couldn’t be created (error 2: Impossibile trovare il file specificato.)
17:32:00: Directory ‘C:\Users\nicol\Documents\KiCad’ couldn’t be created (error 2: Impossibile trovare il file specificato.)
17:32:00: Directory ‘C:\Users\nicol\Documents\KiCad’ couldn’t be created (error 2: Impossibile trovare il file specificato.)
17:32:00: Directory ‘C:\Users\nicol\Documents\KiCad’ couldn’t be created (error 2: Impossibile trovare il file specificato.)
17:32:00: Directory ‘C:\Users\nicol\Documents\KiCad’ couldn’t be created (error 2: Impossibile trovare il file specificato.)
17:32:00: Directory ‘C:\Users\nicol\Documents\KiCad’ couldn’t be created (error 2: Impossibile trovare il file specificato.)
it seams that kicad can’t create folder into Documents and i don’t know how to change permissions

I put the unzipped folder in the path you indicated but it is not detected