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At work I have a computer with two hard drives, a 60 GB SSD as the system partition and a 300GB HDD as a data partition.

The SSD is almost full or at least that's what I can see in the disk manager and the file explorer. But when I select all the files from the root of the SSD and I see the total size, it turns to be around 40 GB, which should give me more than 15 GB of available space. Of course in this selection I included the hidden files and the protected operating system files.

So, I have more than 15 GB in use but I don't know where they come from.

I tried some things to recover that space but without success. I disabled System Restore and the paging file.

What is even more strange is that I downloaded WinDirStat and surprisingly the program shows me that I have around 30% of free space on that partition.

I don't know what more to do and since this not my computer I cannot format the partition.

Here is a screenshot of the file explorer:

File explorer show me I barely have free space

And here is another one from WinDirStat:

enter image description here

ivan0590
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  • Please post a screenshot of windirstat and windows-explorer. – kyze Feb 01 '16 at 15:20
  • I added the screenshots. – ivan0590 Feb 01 '16 at 15:50
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    Did you run WinDirStat "As Administrator"? Have you tried running Windows Disk Cleanup utility to see what it says it taking up the space? – Ƭᴇcʜιᴇ007 Feb 01 '16 at 16:36
  • Agreed, this looks like its running on a limited account WinSxS and Installers could easily be 20GB but you wont be able to see or clean them without admin. – Linef4ult Feb 01 '16 at 17:15
  • run TreeSizeFree (as admin): http://www.jam-software.com/treesize_free/ – magicandre1981 Feb 01 '16 at 17:41
  • Well, I finally discover it thanks to cʜι 007. It was a permissions problem. When I selected all the files from the C drive I wasn't suming the size of the users folders since I didn't have permissions over them. I didn't know that without permissions I couldn't be able to get their size. So, granting permissions over the users folders gave me the right sum. Also, I didn't run WinDirStat as administrator, so the program wasn't grabing those sizes either. – ivan0590 Feb 01 '16 at 17:56

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