



Run cmd with admin privilege (You need to open your computer with admin privilege before all this.Here we suppose the usb stick that we want to repair its bad blocks shows drive H in the computer. Open THIS PC (Windows 10) or My Computer (Windows XP 7) and find out which drive letter your disk or usb shows, and remember it.If it's an sd card, or micro sd card, you need to use a memory card reader that can get it connected and recognized as a drive in Windows computer Insert external storage such as usb disk or usb thumb drive to pc at first.Repair bad blocks with cmd chkdsk h: /f that you need to replace h with your own drive letter that you want to repair its bad blocks Here are the steps to use chkdsk /f to remove bad blocks on Windows computers. This page will introduce several ways to use chkdsk cmd to repair bad blocks on your hard drive, external hard drive, usb stick, sd card etc.
