Unknown file on C drive

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  1. Posts : 2,790
    Linux Mint 20.1 Win10Prox64
       #31

    Quote from this link: What is “<Unknown>”? | WinDirStat propaganda blog
    This mysterious item is just the difference between what Windows reports as the free space on the volume minus size of the files WDS can access. Please note the part WDS can access! This is the important point here. WDS cannot access the files under System Volume Information on all the (NTFS?) drives, so it cannot sum up the sizes of these items
    So... Remove all restore points and turm off system protection of all drives. Reboot, might fix the problem:
    (Win+R then type sysdm.cpl. click on "System Protection")

    Turn system restore back on if you wish.
      My Computer


  2. Posts : 24,568
    10 Home x64 (21H2) (10 Pro on 2nd pc)
       #32

    WDS cannot access the files under System Volume Information on all the (NTFS?) drives, so it cannot sum up the sizes of these items

    TreeSize Free run as administrator can, I frequently use it to see what's in my System Volume Information.

    Bree said:
    Here they are, side by side, looking at the same C: drive. In particular, look at System Volume Information, highlighted in both. WinDirStat says it's empty, TreeSize shows the files and folders it contains.

    Unknown file on C drive-treesize-vs-windirstat.png
    145gb Missing Hard Drive Space due to System &amp; Reserved
      My Computers


  3. Posts : 5,081
    21H1 64 Bit Home
       #33

    fenrir0wulf said:
    I just noticed that all 4 utilities are reporting completely disparate numbers for disk usage. WinDir says 90.8, TreeSize says 86/79, Disks says 83.2 and SS says 81.8.
    It depends upon how they calculate the size.

    https://devblogs.microsoft.com/oldne...28-00/?p=36863
      My Computer


  4. Posts : 58
    Windows 10 Pro x64
    Thread Starter
       #34

    Compumind said:
    Could you make a complete, restorable and verifiable backup of the entire drive?
    Then maybe you can delete that file.

    If there is a problem you can restore the image. Use Macrium Reflect Free.

    Okay I did it and tried to delete the file through admin WinDirStat, but it refuses to delete, all right-click options are grayed out and Del or Shift-Del does nothing
      My Computer


  5. Posts : 17,656
    Win 10 Home 10.0.19044.1706 (x64) [21H2]
       #35

    imkvinayan said:
    Okay I did it and tried to delete the file through admin WinDirStat, but it refuses to delete, all right-click options are grayed out and Del or Shift-Del does nothing
    UnLock IT Free - Unlock a File or Folder Locked by the System
      My Computer


  6. Posts : 58
    Windows 10 Pro x64
    Thread Starter
       #36

    topgundcp said:
    Quote from this link: What is “<Unknown>”? | WinDirStat propaganda blog


    So... Remove all restore points and turm off system protection of all drives. Reboot, might fix the problem:
    (Win+R then type sysdm.cpl. click on "System Protection")

    Turn system restore back on if you wish.
    I tried that already but it's still the same

    - - - Updated - - -

    I would have used this, but only WinDirStat seems to be able to see it, and I can't get a path to the file

    - - - Updated - - -

    Compumind said:
    If so, there should be a windows.old file located on the root of the C: drive.

    I updated in the beginning of June and it has been auto-deleted
      My Computer


  7. Posts : 17,656
    Win 10 Home 10.0.19044.1706 (x64) [21H2]
       #37

    imkvinayan said:
    I tried that already but it's still the same

    - - - Updated - - -



    I would have used this, but only WinDirStat seems to be able to see it, and I can't get a path to the file
    Have you checked to see if Macrium Reflect can see it?

    In other words...make a new backup, then browse the backup. If it's visible in there... then delete it.
      My Computer


  8. Posts : 58
    Windows 10 Pro x64
    Thread Starter
       #38

    Ghot said:
    Despite the size disparity, none of those sizes are 19.4GB apart.



    /e



    Twice Windows Update tried to give me the v2004 Feature Update (which failed twice), but during the process it had created two $xxxxxxx files on C:. I was wondering if that may be the mystery file(s).
    Since the Feature Update failed, it emptied those $xxxxxxxx files, but if it succeeds, I'm wondering...
    I updated back in June and I can confirm that there are no $Windows-BT and other Win Update related folders
      My Computer


  9. Posts : 1,867
    Windows 10 Pro 2004 20H1
       #39

    Easy check.

    Download Everything from voidtools.

    voidtools

    When it opens, it will show a list of all the contents of your hard drive.

    Do not exclude Hidden files and folders or System files and folders. (Tools > Options > Indexes > Exclude)

    Click on the Size column to sort highest to lowest.

    Should be some clues there.
      My Computer


  10. Posts : 58
    Windows 10 Pro x64
    Thread Starter
       #40

    OldNavyGuy said:
    Easy check.

    Download Everything from voidtools.

    voidtools

    When it opens, it will show a list of all the contents of your hard drive.

    Do not exclude Hidden files and folders or System files and folders. (Tools > Options Indexes > Exclude)

    Click on the Size column to sort highest to lowest.

    Should be some clues there.
    I already have Everything and this was one of the first things I tried and it didn't show it even as admin

    - - - Updated - - -

    Ghot said:
    Have you checked to see if Macrium Reflect can see it?

    In other words...make a new backup, then browse the backup. If it's visible in there... then delete it.
    No, WDS seems to be the only program which saw that file
      My Computer


 

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