Windows wont start and now wont let me reinstall

[thegibbler]

hi for a while iwas noticing that my computer was slowing down (q9450 evga 780i evga gtx280 4 gb ram 4 hard drives 2 250s 1 500 1 raptor 36gb) soo i thought i would restart to see if that would help then after the green loading bar goes the screen just went black and did nothing for a reallly long time soo i reinstalled windows and it worked fine i installed the updates the updates needed to restart and it did the same thing got stuck at the black screen i did notice that the install took longer then normal but once i got it working it was fine
any help would be very nice

 

[Scotteq]

Clear the CMOS to eliminate the possibility of incorrect settings. Go into your Bios, and set your DVD drive to be bootable. Then boot to your Install disc:


How to generate a system health report:
http://www.vistax64.com/tutorials/82728-system-health-report.html

checking the Reliability Monitor for errors:
http://www.vistax64.com/tutorials/69535-reliabilty-monitor.html

Troubleshooting Sequence:
http://www.vistax64.com/tutorials/101393-repair-vista-options-preferred-sequence.html


How to check system files in Vista:
http://www.vistax64.com/tutorials/66978-system-files-sfc-command.html

How to perform a Startup repair:
http://www.vistax64.com/tutorials/91467-startup-repair.html

How to perform a full system repair:
http://www.vistax64.com/tutorials/88236-repair-install-vista.html

 

[thegibbler]

tried those but they didnt work it still take about 20 minutes to start and i did the bios again