Scary Windows 10 disk cleanup. Should I run it.

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  1. Posts : 299
    Windows 10
       #1

    Scary Windows 10 disk cleanup. Should I run it.


    One day after the latest update, computer is running fine, I then ran the built-in disk cleanup including system cleanup and here's what I got.


    Windows Update Cleanup 3.99 TB – holy cow.


    My total drive is using about 40 GB, I wonder where this 3.99TB is located.
    Scary Windows 10 disk cleanup. Should I run it.-capture.jpg
      My Computer


  2. Posts : 126
    Windows 10
       #2

    Looks about right, lol. Yes, it's safe to run it.
      My Computers


  3. Posts : 4,594
    Windows 10 Pro
       #3

    Mine showed the same thing when I ran it the 1st time

    It`s that new file system.
      My Computers

  4.    #4

    Mine was exactly the same, I let it remove all of it.
      My Computer


  5. Posts : 7,871
    Windows 11 Pro 64 bit
       #5

    Yes, I had the same on 2 PCs. It.s safe to disk cleaner and recover the space.
      My Computers


  6. Posts : 2,935
    Windows 10 Home x64
       #6

    It seems to be a quirk with latest 321 build. On an older AMD Phenom it just rebooted spontaneusly when running it.
      My Computer


  7. Posts : 279
    21H1 (OS Build 19043.1081)
       #7

    yes i seen the same on my toshiba sat and it really bothered me glad of sorry ? im not alone

    DME
      My Computer


  8. Posts : 27,162
    Win11 Pro, Win10 Pro N, Win10 Home, Windows 8.1 Pro, Ubuntu
       #8

    Opening up an admin prompt and pasting this in: Dism.exe /Online /Cleanup-Image /AnalyzeComponentStore will get rid of it faster than Windows Update Cleanup(at least it did for me).
    Cumulative Update KB3194798 for Windows 10 PC Mobile build 14393.321 - Page 8 - Windows 10 Forums
      My Computers


  9. Posts : 31,467
    10 Home x64 (22H2) (10 Pro on 2nd pc)
       #9

    Scared me too the first time I saw this back in August. That's when I found the explanation (which Cliff S quotes in the above linked post). It's safe to let Disk Clean-up run, but @Cliff S's method is a neater and faster solution.

    @EdTittel has also picked up on my post and explained in far more detail than I could how this can happen.

    Thanks, Bree for the explanation and resource. It provided the inspiration for my blog post today.
    Windows Update Clean-up files 3.99TB
      My Computers


  10. Posts : 299
    Windows 10
    Thread Starter
       #10

    Really helpful responses. Thanks guys. My cleanup took about 15 minutes of sheer agony. But after restart all is well.

    This forum is awesome, learn something new every day.
      My Computer


 

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