My laptop is really messed up. I have a Sager 9880. Here is my problem In "run" I type in format C:
It says all data will be lost and i type in Y.

Then it says
"Format cannot run becasue the volume is in use by another process. Format may run if the volume is dismounted FIRST. All opened handles to this volume would then be invalid. Would you like to force a dismount on this volume? (Y/N) I type in Y.

Then it says Cannot lock the drive. The volume is still in use.

What do I do?

It is on the drive that windows XP is on.
Windows XP came installed on the computer.

When i try to run and reinstall windows from the xp restoration cd, I GET another error after I press I agree. It says something about an error and the system must shut down. Run Chkdsk, and check if there is enough space. There is 8GB rmaining so it should be OK right.

Please help and Thank You.You cannot format drive C while you are running from it. That will never work. You EITHER need the appropriate boot disks, or a bootable O/S CD, like the XP CD.

You need to make SURE your computer has the OPTION of booting from CDROM first (it should) then just restart the machine with the CD in the drive and follow the prompts.