SFC /SCANNOW Command - System File Checker

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  1. Posts : 10,200
    MS Windows 7 Ultimate SP1 64-bit

    do not know.

    If you have a blue screen problem then:
    post in the Crashes and BSOD forum AND
    follow the procedure there for posting the info they need.

      My Computer

  2. Posts : 51
    MS Windows 7 64-bit SP1

    do not see this on my win7dvd anywhere else i can grab it running win 7 x64 pro sp1
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  3. Posts : 10,200
    MS Windows 7 Ultimate SP1 64-bit

    If in Windows Explorer you select your C drive, and then search on xchalVx64.sys what do you find?

    I do not have that file installed as a driver to be run on my system, although it is part of my Win 7. I also don't use the capabilities of the driver.

    I was afraid of this occurring since \windows\system32 isn't where you find some of the files on your Win 7 DVD, although the end up being installed there.

    Now here's another tidbit of info for you: that msg of a hash mismatch can be caused by the copy in sxs being bad and the copy on your computer being good. Maybe Brink knows the best approach to solve your problem.
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  4. Posts : 51
    Windows 7 Pro 64Bit

    I need some help:

    I read the whole tutorial on using SFC.exe to fix corrupt system files. The bad thing is I think I have over 50. I don't know where to get these files from in the Windows 7 Pro DVD, much less how to put them in the right folders; this seems stupid NOT to have a program to run SFC and parse the c:\windows\Logs\CBS.log to extract the (missing/damaged) file and put it where it needs to. - Donald B.
    SFC /SCANNOW Command - System File Checker Attached Files
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  5. Posts : 10,200
    MS Windows 7 Ultimate SP1 64-bit

    Did you use one of those wonder "tune Up" programs? There is so much missing from the store, the backup copy that Win 7 automatically keeps for you and then uses when needed, that I suspect the use of a "wonder program".

    Other than the multitude of missing files from the store, does your system have any problems?

    Because unless Brink has some bright ideas, then the only way I see to fix that is a repair install unless you made an image backup before this problem showed up or maybe you are lucky there is a system restore point which will help but I doubt it because system restore depends upon a valid store when it has to restore system files.
      My Computer

  6. Posts : 51
    Windows 7 Pro 64Bit

    I used some freeware registry programs some time ago; I had a broken WMI component, the only way to fix that was repair install. I use AVG PC Tune Up 2011 it is from the same company who make AVG AV I have used for ages. I ran SFC.exe /scannow and it only repairs three files and shows all files repaired at bottom.

    BTW: I did a REPAIR INSTALL (Run SETUP during Windows running, with out AV) and got a Boot Screen Menu showing Windows 7 (Repaired). I had to change the Boot Menu with BCDEDIT... Pain in the butt.
    Those wonder programs are sometimes crap. I know Windows replaces damaged files it has when it doesn't boot well. If you have any suggestions (a utility that copies all installed programs in Add/Remove List and those in both Program Files(x86) and Program Files, plus those in separate folders with an uninstall###.exe, I would use that to dump this setup and start fresh.
    The Windows 7 Forums consideration for this utility and it's promptness is appreciated.
    Oh well...Repair install here I come...?
    Thanks for the info. Donald
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  7. Posts : 19,383
    Windows 10 Pro x64 ; Xubuntu x64


    I agree with Karl, unless someone else has a better idea. The best option seems to be a Repair Install.

    Repair Install

      My Computer

  8. Posts : 10,200
    MS Windows 7 Ultimate SP1 64-bit

    Stop using all of those WONDER programs. The safe ones are listed in my sig.

    I also recommend the best free, in fact, the best AV software, namely, Microsoft Security Essentials. Once again, link in my sig.

    I wish I could stress using MSE enough. MSE is the and the only anti-virus I use and the only anti-virus that I will install on anyone's computer.
      My Computer

  9. Posts : 51
    MS Windows 7 64-bit SP1

    any uodate regarding that file karl ? it seems to make me think that this could be the reason for my system issue..btw i have download and installed most of your recommended programs ..Do u ever get blue screens regarding memory
      My Computer

  10. Posts : 10,200
    MS Windows 7 Ultimate SP1 64-bit

    I get blue screens once every blue moon and the last one was actually a "feature" of a ms office update which was a once only occurrence so couldn't catch it.

    If you have blue screens still, then I highly recommend the Crashes and Debugging forum or whatever its called. Those chaps are amazing with much experience and knowledge. Follow the instructions there re posting:
      My Computer

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