It might be your OS is crashed or may be RAM is not working properly. Please inspect all the hardware carefully then try.
if the hard disk is infected with virus
Most operating systems uses the boot partition to boot the computer. In some operating systems, both the system partition and the boot partition are used to boot up the system.
An operating system.
A computer boot process is the procedure of starting a computer from scratch, culminating in the loading of and operating system.
Dual Boot
dual boot
On MS platforms, the system partition is used to hold the boot files. The boot partition holds all the windows operating system files. Leave it to Microsuck to mis-lable the partition hiearchy. The system partition holds what is loaded and executed first after the computer runs through its preliminary BIOS boot sequence. It tells the computer where to start loading the operating system from; the boot partition. The boot partition is where all the program files (thousands of them) needed by the operating system are stored. If the system partition is deleted; the computer will not find the operating system. If the boot partition is deleted, again; the computer will not find the operating system.
A Disk Boot Fail means that the disk you normally start your computer from is not working. The computer can be started from the System Disk but that system disk will wear out so you will have no boot disk and no way of repairing the boot disk. Time to look for a new boot disk or better a brand new computer
Boot volume
To Boot a Computer means to start the system upto a stable operating enviroment. Basically its the process that happens from the time you press the power button to the operating system being loaded. Boot is short for BootStrap which is the older term, literally meaning the process of 'Pulling Up' the Computer. Imagine this like a Physical Boot/Shoe where you Pull the Bootstrap to get this on. means to boot a computer is to start.or on a computer.
A boot sector virus is a computer virus that puts itself in the boot sector of a computer. The boot sector is the partition on the disk drive that contains all of the programs and files necessary for the computer to start up. This ensures that the virus will be executed once the computer is turned on.
You change the boot priority of a system by changing settings in its BIOS setup. The computer's first hard drive is usually the default first boot device.
It depends on Wht kind of computer you have.