I downloaded some hard drive analysis tools (windirstat, treesize, and despacio) and they all said I was using less than 100GB, I figured them for a bunch of free tools that were obviously faulty (I later realized they were right!).
- Click on the Start Menu
- Click "All Programs" then "Accessories"
- Right-Click on "Command Prompt" and select "Run as Administrator"
- Don't freak out because you have to use the command prompt
- Type "vssadmin list shadowstorage" into the command prompt
- The results should tell you the amount of storage used and the maximum amount allotted
If you're not satisfied with what you see (my allotment was unbounded! It was taking up 280GB!!!), follow these steps:
- Repeat steps 1-3 above to get bring up the Command Prompt
- Type "vssadmin Resize ShadowStorage /For=[your hard disk]: /On=[your hard disk]: /MaxSize=[how much space you want to allocate]"
- For example: "vssadmin Resize ShadowStorage /For=C: /On=C: /MaxSize=2GB"
- You should get a message saying Successfully resized the shadow copy storage association, and you should have more free space on your hard drive.
I'm not sure what the recommended amount should be (if you know please comment). I gave myself 10GB, which still saved me about 270GB of space! I was flabbergasted at that amount of space.