1.    19 Apr 2016 #1
    Join Date : Apr 2016
    Posts : 2
    Windows 10

    Problem with over 200 GB of system files

    I have a 64-bit Windows 10 PC, I built it a few years ago with Windows 7 and did the free Windows 10 upgrade last year. My hard drive is a modest 500 GB but I recently I noticed I am almost out of room so I went to investigate why. When I used Windows 10 Data Usage tool, I saw that my personal files accounted for less than half the hard drive space used. System files took the other half, specifically 217 GB of System files. I looked it up and I think Windows 10 64-bit takes up 20 GB of space. What the heck is going on here then? I have a very few games- Hearthstone, Portal, etc- and some basic utility files like LibreOffice, Gimp, iTunes, etc. Any suggestions for finding my mystery hard drive hog are welcome.
      My ComputerSystem Spec
  2.    20 Apr 2016 #2
    Join Date : Jul 2014
    Posts : 10,615
    W10 Insider + Linux

    Since you upgraded from W7, you probably have at least one Windows.old folder that contains most of your system and programs files from previous system. That can effectively double the size on disk.
    Disk Cleanup - Open and Use in Windows 10 - Windows 10 Forums
      My ComputersSystem Spec
  3.    20 Apr 2016 #3
    Join Date : Jul 2015
    Posts : 3,808
    10 Pro

    As well as @CountMike said you should download and run as administrator Treesize Free

    That will tell you if you have some odd huge files.

    My Windows 10 with Office (and MS Project which is pretty big for some reason) is less than 11GB so I think you might have some extra stuff you don't want.

    What is annoying (I think so anyway) is that even if you compact your OS it is expanded when you upgrade. So for me (Windows is ~6GB) when I upgrade it will be ~17GB. It will therefore not fit. I know lots of people have more than 32GB assigned but for me it is a PITA.
      My ComputerSystem Spec
  4.    21 Apr 2016 #4
    Join Date : Apr 2016
    Posts : 2
    Windows 10
    Thread Starter

    Thanks, I found some old system files I could clean out- WIndows Restore Points had used a lot of space. I also found a program folder that had a lot of unneeded data on it using Treesize. Now I have half my hard drive space back- perfect!
      My ComputerSystem Spec


Similar Threads
Thread Forum
Solved How to take ownership of system files via CMD?
Google failed me this, people mentioned using setacl/subinacl, but no idea, how to use it. Running typical commands as admin does not work for system folders/files. Like those: takeown /f "C:\Program Files\Windows Defender" /a /r /d y icacls...
General Support
System...... Windows log Files.
After rolling back my laptop from 10 to 8.1 over a week ago and did this weeks Windows 8.1 update, I cleaned up the Hard drive of all unnecessary files and ensured that my Settings did not permit Synchronization. Today, I had to use my Mobile...
General Support
System-Files Virtual Size 2.151.786.996 K ???
31630 What's wrong with this picture? Up until now, I had some biggest programs using 4GB of VAS (virtual size), but W10 using 2TB of virtual size for it's system files??
Performance & Maintenance
system files to delete
There are 3 boxes that refer to Win 10 installation and when you try to delete them it says you will not be able to go back to your previous OS. It is substantial space as I believe one box contains something like x amount of GB's. I have imaged...
Installation and Upgrade
Solved How do i delete system files on other HDD?
i just installed windows 10 onto my first SSD (Made it my master drive) and i'd like to delete every file and folder on my old HDD except the one in which all my games are installed (Not program files its a folder labeled "Games" in the root...
Installation and Upgrade
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 10:04.
Find Us
Twitter Facebook Google+ Ten Forums iOS App Ten Forums Android App

Windows 10 Forums