Now Install MS-DOS 7.10 to Dual-Boot with the installed Windows Vista
Installing MS-DOS 7.10 on the previously prepared FAT32 Primary partition at the end of the first hard disk does not make any changes to Windows Vista which will continue to boot normally.
- Bootup from a Win98SE boot floppy or 98SE MS-DOS boot CD/Flash drive.
- Type A:\SYS C: at the Prompt and press Enter
- this creates a DOS boot sector on the FAT32 partition and installs a very basic MS-DOS 7.10
- Remove the floppy.
- Restart computer. Windows Vista will bootup normally (the Active flag has not been moved).
Next use EasyBCD 2.1 to add the MS-DOS 7.10 boot option to the Windows Vista boot loader menu.
- With Windows Vista booted,
Install/Run EasyBCD 2.1 (click Yes for "User Account Control").
Restart computer. MS-DOS 710 has been added to the Windows Vista boot loader menu.
- Select Add New Entry in the left pane.
- Select the Windows tab in the upper right pane.
- In Type drop-down, select Windows 95/98/ME (not MS-DOS 6.x).
- In Name, rename "Microsoft Windows 9x" to MS-DOS 710.
- In Drive, you'll see it is "Automatically configured". That's correct.
- Click the Add Entry button in the same pane.
- Optionally, you can now modify the timeout of the boot loader menu
- click the Edit Boot Menu (left pane) and set the Boot default OS after to about 5 seconds.
- Exit EasyBCD.
- Install the rest of the MS-DOS 7.10 files at your leisure using the same file versions.