In some incomprehensible way (incomprehensible to me, at least), I ceased to run the service Remote Procedure Call (RPC). As a consequence stopped working half of the system.
When attempting to start the service manually we get error Access Denied (access permissions — administrator).
Select the Properties option in the drop down menu does not work (probably due to non-working RPC service).
Is there any way to fix the system without reinstalling it?