New Post: Error "CreateDirectory failed"

Hi all,

I have installed WPP on my Windows Server 2012 R2 server. There is also my WSUS installed.

I can't create any package with WPP as I always get the error message "CreateDirectory failed".
I made a standard installation, didn't changed a path. I first thought, that it is a problem with the access rights for the path. But I already checked this. I can manually create folders.
Has anybody an idea how to fix it or where it comes from? Do I have to check some registry paths? All ideas are welcome as I really couldn't find a solution so far in the internet.

Or: If there is no easy solution: Is there a proper way to uninstall wpp, so that I can start from the beginning?

Thanks a lot