Computer Boot Sequence

scan your system using any other antivirus than norton being faithful i did not like symantec prodocts one little bit (ghost is an exception) i reccomend you to use mcafee enterprise 8.5i
reset the bios using the jumper on the motherboard then start your computer and i reccomend you to to remove or disable boot from the hard drive and set cdrom as the first priority
and according to me recovery disk will not help much you should format your c drive and do a fresh installation of windows after installing windows do not open any disk drives before scaning the entire hard disk

before formatting copy any documents or data you have stored in c drive

I would try to reset the BIOS to factory settings (original) to see if it will allow you to choose the CD-ROM; if this doesn’t work we’ll try another solution.