Okay so I extracted cabal winrar..it was long though anyways now i got installer from winrar and i can't run it...When i try to right click so i can run it as adminstrator my computer freezes i tried to wait but i gave up after 10 min...When i double click it it just freezes again...Its not like its not responding its like veryyyyyyyyyyy slowwwwwww its forever...i don't know what to do!

my computer system:
AMD Athleon 2.2GHz

if its problem in my system im getting new computer soon..please help me i ran out of ideas