ScanDisk misses a bad sector due to 'Thorough' option not selected.
Cause:
The 'Thorough' option was not selected prior to running the scan. This option is not selected by default.
Solution:
Select the 'Thorough' option when scanning the disk for surface errors.
1) Click the 'Start' button to display the 'Start' menu.
2) Select 'Programs' and select 'Accessories'.
3) Select 'System Tools' and select 'ScanDisk'. (The 'ScanDisk' dialog box appears.)
'ScanDisk' dialog box
4) Select the drive to be scanned.
5) Select the 'Thorough' radio button in the 'Type of test' group.
Thorough radio button
6) (Optional) Click 'Advanced...'. (The 'ScanDisk Advanced Options' dialog box appears.)
a) Select the desired advanced ScanDisk options.
b) Click 'OK' to close the ScanDisk Advanced Options' dialog box.
7) (Optional) Select the 'Automatically fix errors' check box.
Automatically fix errors check box
8) Click 'Start'. (The 'ScanDisk Results' dialog box appears.)
Start button
9) When complete, click 'Close' to close the 'ScanDisk Results' dialog box.
10) Click 'Close' to close the 'ScanDisk' dialog box.
