Windows 8 and 8.1 Forums


"DUDownload" folder taking up C: space

  1. #1


    Posts : 8
    Windows 8

    "DUDownload" folder taking up C: space


    Hey all..... I noticed yesterday when I tried to install Adobe Creative Suite that my new SSD C: drive was only showing around 50GB of free space left, when I know that there should be around 130GB left.

    I installed TreeSize. Here's a screen shot.

    Click image for larger version

    There's 96.3GB in a "DUDownload" folder which is inside a hidden folder. The largest file is 94.6GB(!!!) "Reserved.DynamicUpdate"

    Could someone please shed some light on this and possibly recommend a solution? I'm thinking it could be the update to Windows 8.1 (which I've postponed a couple of times) but nearly 100GB for an update seems a bit much...

    I'm running Windows 8, clean installed about 2 weeks ago onto a brand new SSD. I want my space back!

      My System SpecsSystem Spec

  2. #2


    Posts : 1,875
    Windows 10 Pro Prieview x64


    Have you run disk cleanup? It looks like upgrade files.
      My System SpecsSystem Spec

  3. #3


    Posts : 8
    Windows 8


    Yep... it said I can gain 197mb and didn't mention anything about upgrade files.
      My System SpecsSystem Spec

  4. #4


    I think you have a Trojan Downloader... I would run Superantispyware and Malwarebytes.
      My System SpecsSystem Spec

  5. #5


    Posts : 8
    Windows 8


    Thanks for the comments.

    I ran Malwarebytes and it didn't find anything (except something in the DaemonTools .exe ???) I didn't want to buy Superantispyware but I did a scan with my antivirus (BitDefender) and it found nothing either.

    Any other ideas? Google doesn't seem to have any answers and I'm a bit cautious about just deleting massive files.
      My System SpecsSystem Spec

  6. #6


    Harrisonburg, Va.
    Posts : 10,488
    Windows 8.1.1 Pro with Media Center


    You could make a restore point or an image with Macrium & get rid the big files & see what happens.
      My System SpecsSystem Spec

  7. #7


    You could also rename the folder, something like DUDownloadXXX then reboot and see what happens. If nothing then delete it.
      My System SpecsSystem Spec

  8. #8


    Quote Originally Posted by fugly View Post
    Thanks for the comments.

    I ran Malwarebytes and it didn't find anything (except something in the DaemonTools .exe ???) I didn't want to buy Superantispyware but I did a scan with my antivirus (BitDefender) and it found nothing either.

    Any other ideas? Google doesn't seem to have any answers and I'm a bit cautious about just deleting massive files.
    You do not have to buy Superantispyware, there is a free version on this page: SUPERAntiSpyware | Remove Malware | Remove Spyware - AntiMalware, AntiSpyware, AntiAdware!

    Did you run these in Safe mode? If not do that first. Then run them in normal mode.

    If you find nothing else, I would do as suggested above, Rename the folder to something else and reboot. Run for a few days and if no problems are encountered delete the folder.
      My System SpecsSystem Spec

  9. #9


    Posts : 8
    Windows 8


    Quote Originally Posted by pcgeek11 View Post
    If you find nothing else, I would do as suggested above, Rename the folder to something else and reboot. Run for a few days and if no problems are encountered delete the folder.
    K cool...I'm gonna try this. I'll let you guys know how I go...
      My System SpecsSystem Spec

"DUDownload" folder taking up C: space
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