How to Dual Boot Two Versions of Windows

Опубликовал Admin
4-10-2016, 21:45
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This article tells you how to dual boot two versions of Windows.

Steps

  1. Install the oldest version of Windows you want on one of the partitions/disks.
  2. Install the other version of Windows on the other partition/disk.
  3. These two versions of Windows create entries in your boot.ini on your first drive.
  4. Upon startup, you will get the OS selection screen asking which version of Windows you want to boot.
  5. Choose which Windows version to boot by selecting with the arrow keys and confirm with the enter key.

Tips

  • Format your drives before installing, you can do that with Windows 2000 and above by checking make no file system changes

Warnings

  • Make sure you install the oldest of the operating systems first. If for example you install Windows XP then Windows 98, the XP installation will fail to boot with a "cannot find ntoskrnl.exe" error.
  • rdisk=Physical disk #
  • partition=partition # of that rdisk
  • multi(0)disk(0)rdisk(0)partition(1)\WINNT="Microsoft Windows 2000 Professional" /fastdetect
  • You may want to backup your boot.ini file to a blank floppy or other bootable media, such as a USB flash drive, because if anything goes wrong you'll still be able to boot off of the media and restore the file.
  • Sometimes Windows will fail to write an entry in your boot.ini, if this happens you'll need to do it manually
  • This example assumes you've installed Windows 2000 pro on the first hard drive, 1st partition

Things You'll Need

  • Blank floppy to backup your boot.ini
  • Windows install disks
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