This forum is for *Intune* related questions so you should post in an appropriate forum.
However, just because you are a local admin, doesn't mean you automatically have permissions to everything and it also doesn't mean that something isn't locking the file. The later is the most likely case as sometimes processes lock a file and then never
release the lock for various reasons (none of which are normal).
If it is a permissions issue, then you must first take ownership of the file to be able to grant permissions though as you cannot just change the permissions on a file that you are not the owner of.
> having to go into the properties of each individual file and declare myself the owner, which is an absurd thing to ever have to do as administrator.
It's not absurd at all. It's explicitly how permissions in Windows was designed from the beginning for many reasons. As noted, being an administrator means that you can administer the system, it doesn't mean that you should automatically have permissions
to everything by default.
Jason | https://home.configmgrftw.com | @jasonsandys