Windows 7 couple of problems with administrative stuff

[skahzreg]

so i just got windows 7 and when im playing a game that i want to play windows mode it won't let me unless i run ad admin which is really annoying and i was wondering if anyone knew how to fix that
also when im using firefox and i minimize to play a game, and when im done playing im unable to bring back firefox so i have to end the process and restore the sites i was browsing