what i have done with my computer (hp pavilion)
is when the screen comes up either HP, COMPAQ, or whatever logo the computers brand is, hit f1 and go into the system prompt or settings, and you should be able to have a selection where you can select a boot device. DOS is one of those selections
A Windows Boot Disk operates in DOS command line mode.
Mainly Trojans and Worms, but some can happen without even booting it.
If the system doesn't boot up normaly, that is your only option.
It depends on what you have set-up for the computer to boot-up. A normal setting is for it to boot from the hardrive or if you are on Linux the setting normally is; BOOT-UP LINUX *-Disk Drive *-USB Ports(sometimes, but not normally) *-Hard Drive *-Floppy Disk
While booting, a computer looks at a number of available disks (floppies, CDs, harddisks) to see if they contain a bootable operating system. Older PCs would always boot from the harddisk, unless a floppy was present, and if that floppy didn't contain an operating system (like DOS), it would give this error message so you could remove the floppy and the computer could go on booting from the harddisk.
The word "boot" or "booting" comes from the concept of bootstrapping, or pulling oneself up by the bootstraps. Before PC's, computer operators would run a program called the bootstrap loader. This loader did the initialization that is now automatic. The process became known as bootstrapping and later booting.
Before you format xp you will need to go onto Linux and create a grub boot disk by typing grub-install /dev/fd0. This will create a floppy disk which you can use to start Linux after you have removed and reinstalled xp. After removing and reinstalling xp use the disk to get back onto Linux and use grub-install /dev/hda to restore the Linux boot screen.
no every data of ram gets erased as u boot the pc..
Windows can't pick up any virus' hence why we have anti-virus, even if it could while any PC is booting it has a sequence, booting up different hardware then software at different points so it's possible it will boot up the floppy disk drive but not read it.
boot partitionThe boot partition is the disk partition that contains the Windows operating system files and its support files, but not any files responsible for booting.
To do this you need to go to boot menu . It depends on configuration of your computer .There are 4 ways to go to boot menu 'f2','del','f8','f12'. press these buttons before your computer start booting with hard disk. then you will see a blue (most probably if you are using INTEL) then go to boot option and select CD drive or floppy drive as first boot device and then save changes and then restart the computer. That is all enjoy.
An installation cd/dvd is essential in order to repair the start-up disk. The Mac needs a booting platform & this cd/dvd provides exactly the same. One cannot repair the boot partition while initiating the system from it. Thankfully, there are couple of disk repair software such as Stellar Volume Repair and Disk Warrior that provides bootable disk if your installation cd is missing. You can boot from the DVD created by the software and then perform repairment with the help of these partition repair tools.