Reinstall Windows XP from your CD or DVD set and reformat your hard drive. This will erase everything including the virus. Also, get a Mac.
You do not have to reinstall Windows if you wish to add an additional drive. If you want to be able to boot from that drive, or to replace your current boot drive, you will need to install Windows on it.
You should save all your personal data of a separate drive (USB flash drive or external hard drive). Then deconnect it from your computer. Finaly, insert your windows CD and choose to erase all files on the drive that windows is installed.
Yes you will... Formatting the hard-drive will erase everything that's stored on it - including all programs and personal data. To re-install Windows 7, you will need the activation key supplied in the software's packaging or from the sticker located on the computer's case.
A no disk error is the result of the hard drive crashing. Replace the hard drive, and reinstall the proper Windows software for the specific computer.
No, Not unless it was a "disk image"backup.
Whether or not the hard drive has Windows installed on it is irrelevant to the actual process of replacing the drive. if you want to preserve the current Windows installation, you'll need to use hard drive imaging software to copy the data from the old drive. Otherwise, you can simply replace the drive and reinstall Windows as you would normally.
I use my Compaq computer 'start up' discs to erase the hard drive, this is called 'formating'. Then I reinstall Windows XP and whatever I want on my computer. Don :) I agree with Don. Reformatting wipes the drive clean, and you get to start over.
If you have OS installation media use overwrite program like ErAce and reinstall OS. ErAce can be found from erace.it
No. First of all, not everyone would consider Windows an "upgrade." Secondly, Windows does not support migrating a Windows system, so you have to erase the hard drive and do a clean install.
If you have not used disk imaging / cloning software to transfer it to the new drive, yes. You can still reinstall with the disc, however.
This is a very vague question. It could be anything. A scratch in the Windows CD, a dirty CD ROM drive (yes, they periodically need cleaning!), hard drive failure, etc.