Error Message: DEFRAG0026 Make Sure Disk Is Formatted

When you try to defragment a FAT32 file system drive, you may receive the following error message:

This can be caused by running an earlier version of Defrag.exe than the version included with Windows 95 OEM Service Release 2 (OSR2).

In Windows 98, this behavior occurs when a shortcut to the earlier version of the Disk Defragmenter tool is put on the desktop.

To resolve this problem, extract a new copy of the Defrag.exe file from your original OSR2 CD-ROM or disks. To do so, follow these steps:

1. Open an MS-DOS prompt in Windows 95.
2. Change to the Windows folder, and then type the following line:
   
   ren defrag.exe defrag.xxx
3. Insert the OSR2 CD-ROM or disk 6 in the appropriate drive.
4. If you are using the CD-ROM, type the following line
   
   extract <x>:\win95\win95_05.cab defrag.exe /l <z>:\windows
   
   where <x> is the CD-ROM drive letter and <z> is the drive containing the Windows folder.
   
   If you are using disk 6, type the following line
   
   extract <x>:\win95_06.cab defrag.exe /l <z>:\windows
   
   where <x> is the drive containing disk 6 and <z> is the drive containing the Windows folder.

For additional information about the EXTRACT command, please see the following article in the Microsoft Knowledge Base:

To resolve this problem in Windows 98, delete the shortcut to the earlier version of the Disk Defragmenter tool on the desktop by right- clicking the shortcut and then clicking Delete.