What to do if your Windows does not see the hard drive? Let's deal with this problem together. A common reason is incorrectly defined settings in the BIOS of the priority of device downloads . In order for you to understand what I want to say by this, imagine what you set in the settings so that the computer first accesses the sid-rom and only then the hard drive.
After that, you started or looked at the disk with photos in Windows and forgot to eject it. The next time you turn on the computer, it will turn to this media. Since it is not bootable, it is possible that for this reason you do not have a hard drive detected. In this case, the compact must be pulled out and try again.
If your hard drive is set second in the boot queue, and there is no laser disk in the sid-rum or USB flash drives in USB ports, change the boot priority of the devices in the BIOS settings so that your hard drive on which the operating system is recorded is the first in the queue launch. After this, you need to save the settings, and restart the computer.
You did all this, but the hard drive is still not detected, then we continue to search for the reason. Go into your BIOS settings and see if your computer sees it from there. If not, open the system unit and check that the connections to the motherboard and power supply are correct and reliable. If possible, try connecting it to another computer, as well as using a different cable. When it comes to devices with an IDE interface, make sure that the use of such devices is allowed in the BIOS.
The next reason that Windows does not see the hard drive may be due to an error with the installation of a special jumper that changes the modes of your hard drive from master to slave. Make sure its position is correct by relying on a diagram, which is usually drawn on a sticker at the top.
In my practice, I came across an extremely extraordinary reason, because of which Windows does not see the hard drive. After I installed the necessary parameters for myself in the BIOS, saved them and rebooted the computer, they did not take effect and remained at the level at which they were before my installations. I repeated the above procedure, but this did not give me the desired result.
After some time clarifying the cause, she still showed up. It turned out that the power source was in the CMOS chip. As soon as I replaced it, the changes were saved after the first attempt. So if you can’t solve your problem in other ways, try replacing the battery.
I think you now have an idea of why it happens that Windows does not see the hard drive. Although we have considered far from everything. But the rest is the work of specialists. If you tried all possible methods, but didn’t come to anything, entrust it to a qualified professional, so as not to aggravate the situation. Such people have the necessary equipment and experience with which they will correct your misfortune. If this does not work out even with them, most likely you will have to buy a new hard drive.