Windows 10: Question about windows checkdisk

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  1. Posts : 2,470
    Windows 10 Home x64 (Laptop), Windows 10 Pro x64 (Desktop)
       2 Weeks Ago #21

    Cerawy said: View Post
    So basically chkdsk fixes the file system, and sfc fixes the system files?

    P.S do i need to type chkdsk /x /r /f to do a complete scan and repair?
    This isn't rocket science. Chkdsk checks and repairs the low level structure and physical integrity of the disk storage format. Windows depends on a huge number of system files for correct operation. Sfc checks that all required system files exist and have the correct version installed on your PC. Sfc attempts to fix any problems with such files.

    I just use chkdsk <volume> /f and sometimes use the /spotfix option for speed.
      My ComputersSystem Spec

  2.    2 Weeks Ago #22

    DeaconFrost said: View Post
    You need to understand that the file system is not the same thing as the system files. A file system is the way any hard drive is formatted, NTFS, FAT32, etc. Chkdsk makes sure the file system is good. That's the foundation. If the file system is corrupt, then your system files that reside on the file system will likely be bad as well. SFC stands for system file checker. That verifies your Windows system files are intact.
    Just a quick question, when you say windows system files, are you refering to the files being used when you install windows?
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  3.    2 Weeks Ago #23

    No. Windows system files are the files necessary for Windows to operate. They are...Windows. What gets installed on a blank hard drive after you format the drive and choose a file system.
      My ComputerSystem Spec

  4.    2 Weeks Ago #24

    Well I ran the SFC command and windows found some problems and corrected them. I ran it again and windows didn't find any problems this time. Chkdsk didn't find any problems as well.

    DeaconFrost said: View Post
    No. Windows system files are the files necessary for Windows to operate. They are...Windows. What gets installed on a blank hard drive after you format the drive and choose a file system.
    Got it. SFC is pretty much clarified at this point. Still not entirely sure about chkdsk though.
      My ComputerSystem Spec

  5.    2 Weeks Ago #25

    I don't know of a way to make it any simpler, unfortunately. As someone else said, it's a very basic concept to computing. The drives have a file system. It's how the drive is aligned, partitioned, etc. Chkdsk checks the file system to make sure it is okay. It isn't checking the actual files, but where the actual files are stored. SFC is checking the actual files. If SFC found errors, that means some of your actual files were missing or corrupt. If chkdsk found no errors, than good, it means your file system itself was good and intact.

    Files get saved to a file system. The file system is the cabinet. The files are the papers and folders you stick in the cabinet.
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  6.    2 Weeks Ago #26

    In Part 2 of Windows Internals (6th Edition), pp. 487-491 provide a detailed discussion of file structures for FAT and NTFS file systems, and explain the role of chkdsk in checking and reporting on such structures, as well as the kinds of repairs it can attempt. For those who really, really want to understand Windows' inner workings this two-volume set (for the 7th edition so far, only Part 1 is available right now) these books are absolutely essential. I can scan and PM the OP a link to a dropbox or onedrive copy of the corresponding PDF file, if he or she would like ( @Cerawy ).
    --Ed--
    Last edited by EdTittel; 2 Weeks Ago at 11:36.
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  7. Posts : 2,470
    Windows 10 Home x64 (Laptop), Windows 10 Pro x64 (Desktop)
       2 Weeks Ago #27

    Cerawy said: View Post
    Well I ran the SFC command and windows found some problems and corrected them. I ran it again and windows didn't find any problems this time. Chkdsk didn't find any problems as well.



    Got it. SFC is pretty much clarified at this point. Still not entirely sure about chkdsk though.
    I think it's time for you to use Google to educate yourself in some basic Windows concepts.
      My ComputersSystem Spec

  •    5 Days Ago #28

    I guess the best way to put it is that chkdsk scans the filesystem and corrects any errors it finds, while sfc scans the system files and corrects any errors it finds. Sorry about the confusion, i got them mixed up.
      My ComputerSystem Spec


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