Error Message:

  • Article

Invalid existing format. This disk cannot be QuickFormatted. Proceed with unconditional format (Y/N)? text

Explanation:

The format of the disk is not supported by Windows 2000. The disk cannot be QuickFormatted because QuickFormat preserves the existing format.

User Action:

Either proceed with unconditional format, which will create a valid disk format, or supply a validly formatted disk.