Here, i will show u. on how/what to do.. if your pc shows nothing (blank) after start up.
1st, u need to run windows in Safe Mode. then, click on windows menu.. and Type at the search box "RUN" or shortcut "Windows menu + R" then, u Type in Msconfig in the "Run Box" then, click on start up tab.. and click on Disable all.. Try restart your computer back.. and if your computer works like normal . change back the setting.. But, If it didnt work..NVM. go to Services Tab.. and check in Hide All box .. and after that Check in Disable all box.. try restart your computer. And, if it is still ddnt work. theres something wrong with ur graphic card . thanks and good luck!
*poyo je fully english -.-".ntah btol ke x grammar XD*
korang tau kan blank tu camne? hehe..mksud nye, komp korang tu..bile dah startup balek.. die kosong je.. itamm gituu ..so, guna la step ni tau! :) .dijamin berkesan. aiceh.. thanks and goodluck!