Windows 10: Over 50GB of Temp Files in AppData Subfolder

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  1. Posts : 2,036
    Ubuntu14.04x64 MintMate17x64 Win10Prox64
       03 Sep 2015 #31

    Try running TreeSize Free as administrator - that will help you find what is taking the space.
    Agree. However, I'd rather use the portable version with no installation required for something I rarely use:
    TreeSize Free Portable | PortableApps.com - Portable software for USB, portable and cloud drives
    Or
    WizTree Portable finds the files and folders using the most disk space on your hard drive
      My ComputerSystem Spec

  2.    03 Sep 2015 #32

    topgundcp said: View Post
    Wow - WizTree is fast. Unfortunately it doesn't show the compressed size. As I'm writing a program at the moment to make a minimal sized windows for my VMs I need to see the actual disk used - not the nominal size. I probably run TreeSize 10 times a day - it isn't perfect as it gets terribly confused by junction points but it is the best I've found so far (except it sometimes vastly underestimates disk use).

    Compare the two - TreeSize says my Windows directory is 3GB (about right if I look from another external system), WizTree says it is 16.9GB which it definitely isn't. Program Files is 2.3 GB or 87.7MB - take your pick.

    p.s. explorer is not correct either

    If you don't use Compact /CompactOs:always (or your upgrade didn't do it for you) then WizTree looks better.

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      My ComputerSystem Spec


  3. Posts : 3,361
    W10 Pro x64/W7 Ultimate x64 dual boot main - W10 Pro Insider Preview/W7 Pro x64 - remote pc
       03 Sep 2015 #33

    It only confirms what I already knew just where the most drive space was being used! I put it to the test on the 7 drive that would have the most after the 3yrs. of steady use along Windows 10 set up files extractions, iso images, vhds, etc. along with music and video files and guess where the "Heavy Hitters" are most seen?

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    The next largest under the last on the bottom is for Duke Nukem 1 or the original 8bit dos game coming in at 1.68mb! The yellow outlined areas right at the top other then the 20gb plus or minus a few gig are the Big ones! Program Files doesn't way much on the 64bit 7 here since most everything ends up being installed into the Program Files(x86) folder anyways on the 64bit Windows with the exceptions of the 64bit flavor of a few softwares.
      My ComputerSystem Spec

  4.    06 Jun 2017 #34

    Stumbled upon this old thread and adding my experience here. CCleaner kept telling me about +50Gig of data in %AppData%/Temp, I deleted it several times but it always came back. So I decided to keep it for a while to see what happens next and guess what... Windows 10 updated a few days ago on my machine. So I guess the data was what the OS downloaded in the background to update itself.

    Since the update everyhting is back to normal, CCleaner reports now only 1Gig of usual crap like some memory dumps, internet cache, small amount of temp data etc
      My ComputerSystem Spec

  5.    07 Jun 2017 #35

    snickie said: View Post
    In the folder appdata there are folders local and temp. I have a shortcut to this temp folder on my desktop to quickly access and delete files here. I've done this cleaning manually for over five years now with Windows 7 and now Windows 10 without any problems what so ever.
    Many programs use this folder as a temporary storage and if you don't clean it it will eventually fill up your drive.
    I have done the same thing for years. Appdata/Local/Temp. I always clean that out when I do my normal disk cleanup maintenance with no issues at all.
      My ComputerSystem Spec


  6. Posts : 3,737
    10 Home x64 (1703) (10 Pro on 2nd pc)
       07 Jun 2017 #36

    stealth2920 said: View Post
    I have done the same thing for years. Appdata/Local/Temp. I always clean that out when I do my normal disk cleanup maintenance with no issues at all.
    One thing to note with Disk Clean up, it will only clear files/folders from Appdata\Local\Temp if they are more than a week old, just in case they might still be needed. Manually deleting them all, as others have said, doesn't seem to cause any issues.
      My ComputersSystem Spec


 
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