I have ccleaner on both machines, but never run it on active browsers. Cookies are enabled in opera.

Hello,
I hope I am posting this in the right forum section. If not I apologize for that.
I am quite new to using Opera and I have a problem.
Whenever I restart the browser I get logged out of my opera account and have to enter my access info again. Also I am getting logged out of all other services I am using (FB etc.).
The weirdest part is, that it is only happening on my desktop PC. On my laptop I am always signed in.
Any help is much apreciated.