"Operating System Error," "Access is denied.

Every time I try to start Unity, I get the following error:

"Operating System Error
"Access is denied.
“ID: eWin : 5 / RKey : 320”

I have two accounts on this machine, both have administrator privileges. Unity starts just fine on one account, but on the other, I get this error. Is there any way I can fix this?

EDIT: This just keeps getting better. Working on the other account, I started unity, created a new project, and the damn thing asked me to send you guys an error report instead. After that it kept doing this immediately after the loading screen.

Welcome to the forum!

You should send an e-mail to support@unity3d.com about this - they will be able to sort out this problem.