Every time i go to start up LC it tells me that there was an error installing the patch file and to restart my computer.... i do what t tells me and it does it again.... help??

Have you ever played LC on this system before?
A) If so, did this issue begin after maintenance on Tuesday?
B) If not, have you checked to ensure your system CAN play LC?

Did you check your Anti virus quarantine files?
Did you force an exception through your firewall?

Please post your DXDIAG specs in here.