Reference number: CH000393

Uninstalling Windows NT 4.0.

Issue:

Uninstalling Windows NT 4.0.

Cause:

Users who have dual booted or may no longer run Windows NT 4.0 may wish to have Microsoft Windows NT 4.0 uninstalled.

Solutions:

Windows NT only

If only Windows NT is on the computer it is recommended that you fdisk the hard disk drive; delete and recreate the partitions and then format and reinstall Windows NT.

• Additional information about fdisk can be found on our fdisk page.
• Additional information on how to erase the hard disk drive and start over can be found on document CH000186.

Windows NT with dual boot computer

Boot the computer with a bootable Windows 98 bootable diskette.

At the prompt a:\> type "sys c:" which should return system transferred. Once the system has been transferred, reboot the computer back into Windows 98.

In Windows 98 locate and delete the below files if present.

NTLDR
NTDETECT.COM
BOOT.INI
NTBOOTDD.SYS

Once the above 4 files have been located and deleted or are no longer present on the hard disk drive, delete the Windows NT folder or partition.

Finally, locate the file PAGEFILE.SYS and delete it.

• Additional information about bootable diskettes can be found on our boot disk page.
• Additional information about dual boots can be found on document CH000346.