This article describes how to restore Windows NT dual booting after you
install Windows 95. The article is divided into two sections:
- Installing Windows 95 on a Windows NT and MS-DOS Dual Boot Computer
- Troubleshooting Windows NT and Windows 95 Dual Boot
Installing Windows 95 on a Windows NT and MS-DOS Dual Boot Computer
Windows NT and Windows 95 can reside on the same computer. If you dual
boot between Windows NT 3.5x or 4.0 and MS-DOS 6.2x, the following method
is recommended before you install Windows 95:
- If you do not have an Emergency Repair Disk for your Windows NT
installation, create one using the RDISK utility (RDISK.EXE) in the
- Shut down Windows NT and restart your computer. Select MS-DOS from the
boot loader menu.
- Install Windows 95. Make sure you install Windows 95 to a separate
directory and not the Windows NT %SystemRoot% directory.
After you successfully install Windows 95 and restart the computer, the
Windows NT Flex Boot Loader screen appears, allowing you to choose between
MS-DOS and Windows NT. If you choose MS-DOS, Windows 95 starts. You may
change the MS-DOS entry of the Boot Loader menu to Windows 95 by modifying
the Windows NT BOOT.INI file.
For additional information about modifying the Windows NT Boot.ini file,
please see the following article in the Microsoft Knowledge Base:
TITLE : Purpose of the BOOT.INI File
Troubleshooting Windows NT and Windows 95 Dual Boot
If the Windows NT Flex Boot Loader does not appear at the end of the
procedure above, do the following:
- Insert the Windows NT Setup Boot Disk into drive A and restart your
- Insert Setup Disk 2 when prompted.
- When the Setup options appear, press R for Repair.
Four options appear and all four are selected by default.
- Clear the selection of all options except Inspect Boot Sector by
pressing ENTER to select or clear the options. Be sure that Inspect
Boot Sector is the only option that has an X in front of it.
- Select Continue and press ENTER.
- If you want Setup to detect mass storage devices in your computer
again, press ENTER. If you want to skip the mass storage device
detection, press S.
- Insert Setup Disk 3 when prompted.
- If you have the Emergency Repair Disk, press ENTER, insert the disk,
and press ENTER again. If you do not have the Emergency Repair Disk,
press ESC to allow Setup to locate Windows NT 3.5x or 4.0 and the
- Remove the disk from drive A and press ENTER to restart your computer.
The Windows NT Flex Boot Loader appears and the dual boot ability is