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You need some sort of boot media to load DOS. In addition to floppy drives, you can also use a CD-ROM, USB Flash drive, or boot over a network.
Yes, MS-DOS can be booted from a USB key. To do this, you need to create a bootable USB drive using tools like Rufus or the Windows command prompt. The process involves formatting the USB drive and copying the MS-DOS system files onto it. Once set up, you can boot from the USB drive on compatible hardware by adjusting the BIOS/UEFI settings.
It is possible to boot MS-DOS or Linux from a USB Flash drive, but not all computers support doing it.
Put your question in google and you will find many utilities for your purpose.
USB boot allows you to boot your system from virtually any USB device. You basically can but from floppy, CD/DVD, and stick as far as they have USB interface.
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..
DOS is itself an OS.. It use the boot files to boot.. Few of them are: Config.Sys MSDOS.SYS Command.Com
If you have a USB drive and your BIOS supports booting from a USB device then try that.
AS DOS boot sequence is the series of steps your computer takes when it is turned on. Once the DOS boot sequence has been completed, the start up activities then go into action.
With a usb connected enter your system BIOS by pressing the Delete key during boot up through one of the menus select primary boot as usb. Where the selection is located in the menu will vary depending on your system.
I'm not sure if its a soft boot but Ctrl+Alt+Del will reboot the machine when using DOS. It probably is a soft boot.
A USB flash drive can be used to fix the Boot Manager issue by creating a bootable USB with a Windows installation or recovery tool. You can boot from the USB and access repair options, such as "Startup Repair" or the Command Prompt, to restore or rebuild the Boot Manager. However, the USB itself doesn't fix the issue; it provides the tools needed to do so.