Do Not Uninstall After Changing Your Partitioning

SUMMARY

Microsoft MS-DOS Uninstall does not check the partition table before uninstalling. Since Uninstall rewrites the partition table (using BPB0.DAT), you may experience data loss if you have changed your partitioning.

Microsoft has confirmed this to be a problem in MS-DOS versions 5.0, 5.0a, 6.0, 6.2, 6.21, and 6.22. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.