Help needed! Toshiba Satellite Laptop.L300-1AQ. Windows Vista installed.No previous probs. Problem........Trying to be clever..... I installed some installed windows features,from the internal menu,a couple of days ago.Since then I cannot get my machine to progress. When I switch on, I get the WINDOWS ERROR SCREEN..choices given for start up.Safe mode/Safe mode+Networking/Windows normal. Choose windows Normal. Load bar appears at bottom of screen. Checking system screen appears. Check files/discs NFTS system Check OK Computer restarts...... Load bar at bottom of screen... Configuration updated loading 3of 3.. 59% complete...do not turn off your computer.......FREEZES. Computer turns off automatically after about 5 mins. Cannot get past this screen. What can I do? I don`t have any boot discs(everything was pre loaded)I have recovery discs. Thanks in advance.