Jagged shadows/blocky shadows/pixelated shadows on all games!! Pls help

[mcpresto]

Please help me i've been having this problem ssince i got my new pc. all of the games i played has just blocky ugly pixelated shadows i tried all fixes like updating my gpu driver,updating all drivers, maxing shadows on settings, and everything else like the skyrim fix it just wont work to me, this shadwos really look ugly specially when they move its like flickering screen i couldnt play a game becase of this pls help me ASAP!!

MY SPECS:
Palit Gt 630 2gb ddr3 128 bit
5gb ram ddr2
AMD phenom X4 9550 quad core

my computer is HP Pavillion Media Center m8530f PC

 

[Mooncatt]

can u take a screenshot and post it so we can see?