How to diagnose hard drive
Diagnosis of a hard disk is necessary in cases when strange and incomprehensible things occur with the computer. For example, if at the minimum of running programs your operating system starts to terribly brake or the "blue screen of death" often appeared. If you recently moved the operating system, and the computer continues to issue a "blue screen" and brake, then the diagnosis must be made without fail.
Diagnostics of a hard disk in Windows
Diagnosing a hard disk using the operating system is the easiest and painless and fastest way to do it, so it should be done first. In order to do this, you need to go to My Computer and right-click on the shortcut of the disk that you want to check. Then select Properties in the context menu and go to the Tools tab in the window that appears. In this tab we are interested in the item "Checking the disk for system errors" (in different OS versions the wording may differ, but the meaning is the same).
In that case, if you are going to test the hard drive where the operating system is installed, a window will appear with a warning about the impossibility to do this until the disk is used. You can disable the drive (for inexperienced users is not recommended) or click Cancel. In the second case, a window will appear with the offer to schedule the disk check at the next reboot – this is what we wanted (this is the best option check). The same actions can be performed with the rest of the disks and schedule the test at next restart. After reboot and successful verification of all disks on errors, if any have been identified and not corrected automatically by the system, it is necessary to produce a diagnosis using special software from the manufacturer or specialized tools.
Hard disk diagnostics using programs
There are a large number of programs for diagnosing the status of the hard disk, both from hardware manufacturers and those created by third-party developers. Before using them, you must save all of the most important data on another media, since data can be deleted during disk recovery. Further, if you intend to use the software from the manufacturer, you need to establish who made your hard drive. You can do this by digging into the documentation for your computer or via Device Manager.
Once you know your manufacturer or if you decide to use the universal tool (for example, MHDD,) you need to download this program on the website of the developer. If you are using software from the manufacturer, then you just need to install it on your computer, run it, and follow the intuitive prompts.
If you use the MHDD program, then everything will be a little more complicated. At the initial stage, make sure that the disk is defective. To do this, we connect it to another computer or laptop, for example, via a USB adapter, copy the data that is needed and format the disk (all information will be deleted). Next, we return the disk to its rightful place and re-install the operating system. We check the operability, if the errors have not disappeared - we proceed to the next stage.
The downloaded MHDD program, or rather its ISO image (distributed free of charge), should be written to disk. Then reboot the PC and enter the BIOS, configure the boot so that the drive is first started. Again we go to the restart, during which the program menu appears before us. Press F4 to start scanning and wait for the results. Most likely, after the completion of work, the program will display a picture on which will be depicted individual sectors with very slow response to the request (more than 500 ms).
In the next step, execute the Erase command in the program menu to completely erase the disk and format it. After that, you need to scan the disk again, however, at the same time, enable the function Remap, which will block all the damaged parts of the disk and prevent their use during operation. Now you can go back to the usual boot settings and install Windows.