: The portable version can be launched directly from a USB flash drive or bootable CD, allowing you to repair drives even if the operating system fails to boot.
Windows has a powerful native tool to find and repair disk errors. Open as an administrator. Type chkdsk C: /f /r (replace C: with your drive letter). Press Enter . 2. CrystalDiskInfo (Free & Safe) hdd regenerator 171 portable full version link