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I'm running Windows 8.1, and have a 240GB SSD for my C drive and a 2TB HDD for a D drive.

On the D drive, there is a System Volume Information folder taking up 380GB... I'd like to reduce or eliminate this. My understanding is that this is where System Restore information is located, but:

  1. Windows reports that protection is off for that drive, and;
  2. Windows reports current disk space usage for system protection is 1.23GB.

What else could this folder be for? Using Treesize Professional, I can see that it contains about 25 or so files with names like {95cdd416-1f00-11e3-9d97-c86000bd4dd9}{3808876b-c176-4e48-b7ae-04046e6cc752} ranging in size from 92GB to about 240MB, as well as tracking.log and IndexerVolumeGuid files.

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Shadow Copy and Indexing information, usually.

See this document for more info

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And how do I manage its space usage? – NaOH Oct 21 '13 at 20:39
    
Here you go: For Windows 8 – CIA Oct 22 '13 at 3:28
    
As I said above, System Restore wasn't enabled for that drive. – NaOH Oct 22 '13 at 6:50
    
In that tutorial, there was a "delete" option, which would have been a quick fix. – CIA Oct 22 '13 at 14:14
    
No it wouldn't have. As I said, this was from the previous Windows 7 install (I only formatted the SSD), so I can all but guarantee that Windows wasn't even aware those files existed. – NaOH Oct 22 '13 at 18:58
up vote 0 down vote accepted

I figured out that lots of the files contained in this folder predated my Windows 8 install, but I couldn't delete them in Windows no matter how much I tried. I took ownership, changed their permissions with CACLS, no dice.

I booted a Linux Mint Live CD, and was able to delete them from there. Voila, 300GB or so of HDD space freed.

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