fix / improve the requirement of admin privileges on Windows

[gitmank]

test key management and encryption on Windows

[gitmank]

currently there are some issues saving managed keys at the vault path in Windows, this needs to be investigated

[siphyshu]

this is not an issue per se, but just windows UAC.

the script needs admin privileges to write in C:/Program Files

we can either change the managed vault location or figure out a way to authorize the script with admin perms.

will explore later, this is not priority right now.