There is no such thing as not being able, in most cases people have no idea what they are talking about. Vista uses a special "protection". As result if you want to install xp on the vista partition it will not allow you do so. There are some steps which must be taken if you want to format vista partitions.
reformat the computer.
Yes, you can. But you will have repartion and reformat the hard drive.
You cannot reformat a hard drive and keep operating system(s) untouched. The point of formatting is to erase all data. There is only one exception, you can reformat some partitions on your hard drive if you have any. If you want to keep your current operating system those partitions must not be system.
If 'vista' recognizes the existence of the drive, you might have to reformat the former 'xp' drive. Don't think it would be wise to have two complete OS's working on the same PC.
If you are trying to install xp, you have format the hard drive prior installation. If you trying to reinstall Vista, check your hard drive for bad sectors. Make sure that the installation CD/DVD is readable (just try to copy all content on your hard drive).
Reformat the drive
Not unless you reformat the drive, although if the drive is a different format like a mac and you have a PC you might have to reformat the drive just to use it
One can learn how to reformat a hard drive by visiting the step by step instructions on either the Windows or Apple computer site (depending on the hard drive maker).
Reformat hd. On the XMB go into the settings menu and you will find "Reformat hard drive".
When you reformat a hard drive you change it to whatever formatting you have selected and it will overwrite whatever format was used before.
yes
You can try to reformat the hard drive