I ran the full-up chkdsk. The results are below. After the chkdsk I ran hdtune again. The CRC numbers were unchanged. Depending on where the CRC is checked, the errors could be in the disk, the disk read logic, the cable and / or the PC disk interface hardware. Based on the bad sector count, I’m not too nervous about the disk at this time. From what I’ve heard, new disks at manufacture have bad sectors that are mapped around, and sectors will go bad as the disk ages. All disks will eventually fail.

My next step will be the dism when I have some spare time to see if that will fix the problem. And I’ll keep my eyes open.

Thanks for the help,

chkdsk results follow:

Checking file system on C:
The type of the file system is NTFS.

A disk check has been scheduled.
Windows will now check the disk.

Stage 1: Examining basic file system structure …
1145344 file records processed.
File verification completed.
Phase duration (File record verification): 1.54 minutes.
16344 large file records processed.
Phase duration (Orphan file record recovery): 0.00 milliseconds.
0 bad file records processed.
Phase duration (Bad file record checking): 0.83 milliseconds.

Stage 2: Examining file name linkage …
26592 reparse records processed.
1450402 index entries processed.
Index verification completed.
Phase duration (Index verification): 4.77 minutes.
0 unindexed files scanned.
Phase duration (Orphan reconnection): 7.33 seconds.
0 unindexed files recovered to lost and found.
Phase duration (Orphan recovery to lost and found): 1.77 minutes.
26592 reparse records processed.
Phase duration (Reparse point and Object ID verification): 64.93 milliseconds.

Stage 3: Examining security descriptors …
Cleaning up 1449 unused index entries from index $SII of file 0x9.
Cleaning up 1449 unused index entries from index $SDH of file 0x9.
Cleaning up 1449 unused security descriptors.
Security descriptor verification completed.
Phase duration (Security descriptor verification): 323.02 milliseconds.
152530 data files processed.
Phase duration (Data attribute verification): 0.95 milliseconds.
CHKDSK is verifying Usn Journal…
40192552 USN bytes processed.
Usn Journal verification completed.
Phase duration (USN journal verification): 2.25 seconds.

Stage 4: Looking for bad clusters in user file data …
1145328 files processed.
File data verification completed.
Phase duration (User file recovery): 2.82 hours.

Stage 5: Looking for bad, free clusters …
153939752 free clusters processed.
Free space verification is complete.
Phase duration (Free space recovery): 0.00 milliseconds.

Windows has scanned the file system and found no problems.
No further action is required.

976189498 KB total disk space.
358663400 KB in 924109 files.
480604 KB in 152531 indexes.
0 KB in bad sectors.
1286482 KB in use by the system.
65536 KB occupied by the log file.
615759012 KB available on disk.

4096 bytes in each allocation unit.
244047374 total allocation units on disk.
153939753 allocation units available on disk.
Total duration: 2.96 hours (10671129 ms).

Internal Info:
00 7a 11 00 a9 6d 10 00 a4 a1 1c 00 00 00 00 00 .z…m……….
39 03 00 00 a7 64 00 00 00 00 00 00 00 00 00 00 9….d……….

Windows has finished checking your disk.
Please wait while your computer restarts.