The situation when the computer does not see the disk is quite rare. In this case, the user may need to open the BIOS and set the correct settings. Knowing how to do this will help you get your computer back up and running.
Instructions
Step 1
First, assess the situation that is causing the problem on your computer. For example, it worked properly, then at the next power-up it stopped loading, while the disk was not visible in the BIOS. This situation is accompanied by the text DISK BOOT FAILURE. INSERT SYSTEM DISK AND PRESS ENTER. That is, the system does not see the disk, and therefore cannot boot from it.
Step 2
Enter the BIOS, to do this, press Del or F2 at system startup. The specific key depends on the computer model (can also be F1, Esc, F11, F12). Go to the Standart CMOS Features menu and make sure that the disk is really not detected - in this case, None will be recorded everywhere.
Step 3
In this case, you will not be able to "turn on" the disk, since it is not detected at the hardware level. That is, there is some kind of physical malfunction: the disk itself, the power or data cable is faulty, the motherboard may malfunction. You can check the health of the disk by connecting it to another computer. Remember that a healthy disk does not need to be turned on, the system finds and detects it automatically.
Step 4
You may encounter a situation when the system does not see the disk when installing the OS - and a message appears that no disks were found. The problem is typical for laptops and fairly old Windows distributions that do not have SATA drivers. The best option in this case is to find a newer distribution that contains these drivers.
Step 5
Changing the settings in the BIOS may be required when installing a new OS in the event that there is no boot menu (usually invoked by pressing the F12 key). Select the disk from which the boot will take place, in this case it is necessary in the BIOS. Find the tab with the lines First boot, Second boot, etc. In the First boot line, set the boot from CD and save the changes - the SAVE AND EXIT SETUP menu item. The computer will now start booting the OS from the CD. Remember that when installing immediately after the first automatic reboot, you must enter the BIOS again and return to the original settings. Without this, the OS installation from the CD will start again.
Step 6
If the disk is visible in the BIOS, but Windows does not find it, then the problem is most likely in the type of its file system. For the disk to be visible, it must be formatted in the type of file system that you are using. For Windows XP and Windows 7, this is NTFS. Use Acronis Disk Director to format it. Better to use the version booted from the CD. After formatting and restarting, Windows will begin to see the drive.
