I installed my windows using the DVD drive so I'm ruling out this possibility for the moment.
I have tried that. Still not working!
Right now, I'm thinking about 2 things:
1- I tried to install this programhttp://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-113031-1&cc=emea_middle_east&dlc=en&lc=en&os=4063&product=5292805&sw_lang=
but it didn't install so I cancelled the process. I think that this tool triggered the problem, but I don't know what to do.'
2- I updated my BIOS version, does this have anything to do with my problem?
Thanks a lot.