Hard Disk Sector Repair

This option will have scandisk.exe run on a hard disk, in repair mode.  This is often necessary following power failures or program crashes.  These events occur when program and data files are in use, or "open".  This means that your operating system will be uncertain about the size and ending location of these files, which can result in loss of data.  Scandisk.exe will correct these conditions, among others.

Plan on 10 minutes for this.