- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Try using your windows cd to boot up the computer and if that does not work then you may need to reset the bios. Inside the case if it is desktop there is a way to reset the the bios. There is a jumper that needs to be switch then switched back that will reset the bios. If this does not work may need to get a new hard drive. The MBR ( Master Boot Record) may have been corrupted.
1 Remove any floppy disks or bootable CDs, DVDs, USB flash drives or other bootable media from the computer. Attempt to restart the computer again. Proceed if you continue to receive the error. 2 Restart the computer again. Press the key required to enter your BIOS setup. (The monitor usually displays a "Press [key] to access BIOS" right after restarting your computer. Press the key shown on your screen.) 3 Navigate to the "Boot Options" or "Advanced" menu by using the arrow keys. (The precise menu terms will vary according to your computer and BIOS type.) 4 Select the hard disk that contains your operating system (usually C:) as your primary boot device. Select your CD/DVD drive, your floppy drive or another hard disk as your secondary boot device. 5 Save and exit the BIOS. Proceed with the next step if you see the "Non-system disk error" message again. 6 Restart the computer. Return to the BIOS' "Boot Options" screen by following the steps above, then set the "CD/DVD drive" as the primary boot device and the hard disk as the secondary boot device. Save and exit the BIOS. 7 Insert your Windows installation disc. Restart the computer. Press any key to boot from disc. Follow the on-screen prompts to reinstall Windows. 8 Replace your hard disk drive if you cannot install Windows.
First will you change your bios setting it will be change at starting time when you switch on the computer press f8 key and bios setting well be display by monitor will you change only first primary device -cd/dvd and save the setting and restart your pc and put cd in your cd drive when you restart your pc it show can you boot from cd please enter any key and you enter any key and your system is booting from cd please see the instruction which display and you boot the computer itself.
First will you change your bios setting it will be change at starting time when you switch on the computer press f8 key or delete button and bios setting well be display by monitor will you change only first primary device -cd/dvd and save the setting and restart your pc and put cd in your cd drive when you restart your pc it show can you boot from cd please enter any key and you enter any key and your system is booting from cd please see the instruction which display and you boot the computer itself.
The internal power supply turns on and initializes. The power supply takes some time
until it can generate reliable power for the rest of the computer, and having it turn on
prematurely could potentially lead to damage. Therefore, the chipset will generate a reset
signal to the processor (the same as if you held the reset button down for a while on your
case) until it receives the Power Good signal
from the power supply.
When the reset button is released, the processor will be ready to start executing. When
the processor first starts up, it is suffering from amnesia; there is nothing at all in
the memory to execute. Of course processor makers know this will happen, so they
pre-program the processor to always look at the same place in the system BIOS ROM for the
start of the BIOS boot program. This is normally location FFFF0h, right at the end of the
system memory. They put it there so that the size of the ROM can be changed without
creating compatibility problems. Since there are only 16 bytes left from there to the end
of conventional memory, this location just contains a "jump" instruction telling
the processor where to go to find the real BIOS startup program.
The BIOS looks for the video card. In particular, it looks for the video card's built in
BIOS program and runs it. This BIOS is normally found at location C000h in memory. The
system BIOS executes the video card BIOS, which initializes the video card. Most modern
cards will display information on the screen about the video card. (This is why on a
modern PC you usually see something on the screen about the video card before you see the
messages from the system BIOS itself).
The BIOS then looks for other devices' ROMs to see if any of them have BIOSes. Normally,
the IDE/ATA hard disk BIOS will be found at C8000h and executed. If any other device
BIOSes are found, they are executed as well.
The BIOS performs a "system inventory" of sorts, doing more tests to determine
what sort of hardware is in the system. Modern BIOSes have many automatic settings and
will determine memory timing (for example) based on what kind of memory it finds. Many
BIOSes can also dynamically set hard drive parameters and access modes, and will determine
these at roughly this time. Some will display a message on the screen for each drive they
detect and configure this way. The BIOS will also now search for and label logical devices (COM and LPT ports).
The BIOS will display a summary screen about
your system's configuration. Checking this page of data can be helpful in diagnosing
setup problems, although it can be hard to see because sometimes it flashes on the screen
very quickly before scrolling off the top.
The BIOS begins the search for a drive to boot from. Most modern BIOSes contain a
setting that controls if the system should first try to boot from the floppy disk (A:) or
first try the hard disk (C:). Some BIOSes will even let you boot from your CD-ROM drive or
other devices, depending on the boot sequence BIOS setting.
Having identified its target boot drive, the BIOS looks for boot information to start
the operating system boot process. If it is searching a hard disk, it looks for a master boot record at cylinder 0, head 0, sector
1 (the first sector on the disk); if it is searching a floppy disk, it looks at the same
address on the floppy disk for a volume boot sector.
If it finds what it is looking for, the BIOS starts the process of booting the operating
system, using the information in the boot sector. At this point, the code in the boot
sector takes over from the BIOS. The DOS boot
process is described in detail here. If the first device that the system tries
(floppy, hard disk, etc.) is not found, the BIOS will then try the next device in the boot
sequence, and continue until it finds a bootable device.
If no boot device at all can be found, the system will normally display an error message
and then freeze up the system. What the error message is depends entirely on the BIOS, and
can be anything from the rather clear "No boot device available" to the very
cryptic "NO ROM BASIC - SYSTEM HALTED". This will also happen if you have a
bootable hard disk partition but forget to set