Type Y when asked to dismount the volume or schedule the scan for the next restart.
Data recovery is a crucial concept to understand before running any disk repair tool. There are two times when you should prioritize data recovery over repair: chkdsk on external drive fix
But running CHKDSK on an external drive is slightly different than on your internal C: drive. Follow this guide to do it safely and effectively. Type Y when asked to dismount the volume
If CHKDSK runs but finds new bad sectors every time, the drive is dying. Replace it. A new 2TB external drive costs less than a data recovery lab. Follow this guide to do it safely and effectively
: Forces the drive to "dismount" (disconnect) so the tool can work without other programs interfering. Troubleshooting Common Issues CHKDSK /F /R /X Commands to Scan & Fix Hard Drives
Write protection prevents CHKDSK from making necessary repairs. Remove it using these methods: