constantly restarting after installation??

alright so yesterday my friend got me windows7 ultimate 64 bit for christmas

i install it, didn't really care about my files on my computer so i didnt try to backup anything blah blah blah (IM NOT COMPUTER SAVVY)

i fell asleep during installation and i wake up to a blank black screen and the only thing movable was my cursor. i turned the monitor on and off and there is this message saying installation will continue after a restart. there is no desktop either. i restart my computer and then it starts going into a cycle of restarts everytime i get to that screen. i have no idea what to do and quite frankly i want to fucking rip out windows7ultimate, shit on it, then try it again (the installation.)

im on my living room computer and my computer in my room is currently just restarting over and over.

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