,,please help..I have downloaded and installed the latest update for vista..It is called vista sp2 update..,it says,,this installation will last for an hour or more.,blah blah,after then i waited and installed the update..When i tried to boot my pc..It says ..Windows failed to start.A recent hardware or software change might cause..I have 2 choices,launch startup repair(recommended);start windows normally..I tried to choose launch startup repair and for so long..Finally its finished..But!!The problem is when i start it normally the Microsoft corporation sign and the progressbar appears so long..and ive waiting for hour but nothing happend..Please help me with dis problem..Pls thnx..