 Hello everybody! This video is about how to check your hard disk for errors and correct them in Windows 10. You should do it if you have doubts that your hard disk started working in the wrong way. For example, the computer is slow to start or shut down, there are sudden system restarts or freezes when it works with files, and so on. You don't have to install any other programs, because all you need is already in your system. To scan the system disk for errors and fix them in a Windows operating system, you should exactly the common check disk in the command prompt started as administrator. The common check disk works only with disks formatted in an NTFS or FAT32 system. To do it, right-click on the Start menu and click on Command Prompt Administrator. Then enter the common check disk and the drive letter for the disk you want to check for errors. In my case, that is disk C. Then you should enter the parameter F, which makes errors to be fixed automatically, and the parameter R, which checks the damaged sectors and tries to recover information. Press Enter. As we are checking a hard disk currently used by the system, we get this message. Cannot lock the current drive. Check disk cannot run because the volume isn't used by another process. Type Y, press Enter and see this message. This volume will be checked the next time the system restarts. After that, go to the Start menu and restart the computer. Don't touch anything on your keyboard. And now you can see this in the next window. Scanning and repairing drive C. It means that the command check disk is working and you should just wait for the process to be completed. Scanning and correcting errors can take up quite a long time. After the process is over, you will see statistics on the scanned data, found errors and damaged sectors. To check an external disk, a memory card or a USB drive, you can use a Windows utility. To do it, go to this PC, right-click on the necessary disk. In my case, this is disk E and select Properties. In the Tools tab, click on Check. In my case, Windows 10 tells me that a disk scan is not required, but you can force such check by clicking on Scan and repair drive. Do it and wait until the scanning is over. In my case, Windows has found no errors. Also, you can use the command CheckDisk to check an external disk, a memory card or a USB drive. When you do it, these drives are not used by the system, so you won't have to restart the computer. Thank you for your attention and good luck. If you liked this video, click the Like button below and subscribe to our channel to see more.