Win NT Err Msg: MBR Checksum Error: A Virus May Be Present...

ID: Q123814

The information in this article applies to:

Microsoft Windows NT Workstation version 3.5
Microsoft Windows NT Server version 3.5

SUMMARY

If Windows NT detects a problem with the Master Boot Record (MBR), the following message appears:

MBR checksum error: a virus may be present. Verify Master Boot Record integrity.

MORE INFORMATION

MBR problems are frequently caused by boot sector viruses. Microsoft has confirmed that versions of the Stoned and Josh viruses can cause the MBR checksum error message.

This problem most often occurs when you have set up Windows NT using WINNT.EXE. The floppy disks for a CD-ROM installation can become infected when you run DIR from an infected MS-DOS computer.

If the MBR checksum error message occurs during setup, Windows NT Setup does not continue. If this happens, run an anti-virus program to remove the virus.

Additional query words: prodnt NT infected

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