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I run Check Disk occasionally and, until recently, haven’t had any problems. Now it repeatedly shows the following errors:
The USA check value, 0x0, at block 0x3 is incorrect.
The expected value is 0xe.
The USA check value, 0x0, at block 0x3 is incorrect.
The expected value is 0x9.
The USA check value, 0x0, at block 0x3 is incorrect.
The expected value is 0xa.
and on and on for probably over a hundred entries.This is happening on two computers, so I don’t believe that it is a hardware problem. The computers are working OK, but it is worrisome to have this every time that I run Check Disk.
I had installed and used Window Washer on both computers shortly before I first found this, but otherwise don’t have any reason to believe that it is part of the problem. Webroot support won’t help.
Does anyone have any suggestions?

mmm - not a all sure what's amiss... but perhaps go back a restore point prior to running window-washer; then see if problem persists?

I run Check Disk occasionally
Why? I run chkdsk only when I suspect there may be HD problems (bad sectors, etc) The new HD today are much more reliable than the last 5 years.
i_XpUser

Take a look in the chkdsk log.
1. Click Start, point to Programs, Administrative Tools, and then click Event Viewer.
2. In the Event Viewer window, on the main menu, click Log, and then click Application.
3. Scroll through the events until you see an event with Autochk as the Source.
4. Double-click the event to view the results of previous startup check disk operations.
This should give you clues why you are getting the error messages.
i_XpUser

The responses are appreciated.
trvlr, I should have run System Restore when I first discovered this problem in early February, but I didn’t, and now I am reluctant to take my computer back that far since I’m not having any performance problems.
XpUser, an old habit. I used to run ScanDisk when I was using W98. I don’t know if there is any benefit to regular chkdsk use.
I scrolled back to Feb. 28th in the Application section of Event Viewer (without filters) and couldn’t find any entries for Autochk in the Source column.

I may be wrong... but is it possible to revert to an earlier state (via system restore), and if you don't like it... advance to a later one? Not having tried it I'm not at all sure it's a viable path/option?
If it is a viable path/option, it might at least allow you to see if things are due to the window-washer item?
Perhaps others with more experience in this regard can advise?

Try chkdsk c: /f /r from the run menu and let it do a thourough scan.
Note: You'll get the message below
The type of the file system is NTFS.
Cannot lock current drive.Chkdsk cannot run because the volume is in use by another process.
Would you like to schedule this volume to be
checked the next time the system restarts? (Y/N)Just hit 'Y' for Yes and reboot the system for the procedure to start.

Sabertooth, I got the same thing. Here is a truncated version:
Event Type: Information
Event Source: Winlogon
Event Category: None
Event ID: 1001
Date: 3/29/2006
Time: 1:32:59 AM
User: N/A
Computer: QUIN2
Description:
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.
Cleaning up instance tags for file 0x8ecf.
Cleaning up instance tags for file 0x9073.
The USA check value, 0x0, at block 0x3 is incorrect.
The expected value is 0xe.
The USA check value, 0x0, at block 0x3 is incorrect.
The expected value is 0x9.
………………………………………………………………
………………………………………………………………
………………………………………………………………
The USA check value, 0x0, at block 0x3 is incorrect.
The expected value is 0x6c3.
The USA check value, 0x0, at block 0x3 is incorrect.
The expected value is 0x7.
The USA check value, 0x0, at block 0x3 is incorrect.
The expected value is 0x3e8.
The USA check value, 0x0, at block 0x3 is incorrect.
The expFor more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
There probably are a hundred or so similar entries where the dotted lines are. The Help and Support Center wasn’t any help.

Very odd.
Do a search for 0x3, include to look for hidden files.
Best Regards and Wishes,
Mesich, Webmaster of mesich.com
Currently stored on a temporary webhost.

I would have suggested you run the manufacturer's diagnostic test on the drive and check if for errors, but I suspect the HDD will pass the test and this most likely is a data issue.
However to fix the data issue, you'll need to wipe the HDD and unless you've backed up your critical data, I won't recommend that.
BTW, did you add any hardware and was anything changed recently ?

Sabertooth, thanks for your help.
As previously noted, this occurred on two computers, so I don’t think that it is a hardware issue. I haven’t added any new hardware. The software environment is always changing with multiple updates and the occasional new program. The thing that stood out in my mind was the installation and use of Window Washer. Among other operations I used it to wipe the free space on both computers. I wonder how many people who use Window Washer also run chkdsk.
Since there is no obvious performance problem, I don’t think it would be worth the time and risk to reformat. I’m still mulling over trvlr’s suggestion about running System Restore. I would have to go back almost two months.

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