If you've tried to use PartitionMagic 7 or 8 from Windows 2000/XP to image or alter a Vista partition, or to write something onto a drive that had a Vista partition on it, you might've been in for a shock.

UPDATE (16-Apr-2007): If you are using Windows Vista, there is a new option in chkdsk - chkdsk x: /b - which will re-evaluate all the bad sectors on your drive and remove non-faulty sectors from the list. Please use this instead of the methods below if you have access to Vista!