After my bro installed windows xp my pc cant start,i get a message sayn we apologise 4 th inconvenience,but windows did not start succesfuly.recent hardware or software change might have caused.if ur computer stopd responding,restarted unexpectedly o was automaticaly shut down 2 protect ur files n folders,choose last known configuration to revert to th most recent settings that worked.if a previous startup attempt was interupted due 2 a power failure o bcoz power o reset button was presed o if u arent sure wat caused th problem,choose start windows normaly.safe mode.safe mode wit networkn.safe mode wit comand prompt.last configuration(ur recent settings that worked).start windows normaly.after i choose th start windows normaly option my pc completely freezes,i wait 4 a few minutes to see if anythng hapens but o goes in vain.pliz help am computer damn.