This was taken out of Windows XP, but is still in Windows 98 and below.
In Windows, press F8 during booting.. You will find a menu in which you will fine an option - "Safe Mode in DOS Prompt".. Enter in that menu, you will boot from DOS Prompt.. In Windows 98, you will find the "Boot from DOS prompt".. You can select that option to boot from DOS..
PE 2
In DOS, you cannot bypass Config.sys.. However you can select or deselect the options by pressing F8 key during boot..
No. Windows Vista is not based on DOS and a DOS boot disk will be unable to read the file system that Vista is on.
You need some form of boot disk - a floppy of DOS, a Windows boot floppy, a bootable Windows CD, and sometimes Linux can be used to make a plain MS-DOS 16-bit fat) partition.
HCL
Windows PE
A Windows Boot Disk operates in DOS command line mode.
in windows 98 its start,run,command. or you can boot into ms-dos by going to start,shutdown,restart into ms-dos.
...with Windows XP Professional already installed on your computer. Windows Vista cannot be installed without Windows XP Professional installed first on your computer, it's the same with Windows 7; Windows' latest operating system (OS).
It's possible, you have to correct boot.ini file and copy DOS loader and DOS system on your hard drive.
The io.sys file contains the basic I/O software for real mode and is required for Windows 9x/ME or MS-DOS to boot.