What happened to all of my hard drive space on Windows Vista?
Posted February 4th, 2009. Categorized under Computers. 74 Comments
If you’re using Windows Vista, you may have noticed that the amount of free space on your hard drive seems to steadily decline, even if you haven’t really been adding anything to fill it up.
When I first noticed this, I couldn’t figure out where all of my free space had gone. After doing some searching around online, I found out that the problem mostly was caused by excess System Restore points. After fixing this, I freed up over 20 gigabytes of space on my hard drive!
System Restore is a built-in feature of Windows that allows you to “roll-back” your system to the way it used to be on a certain date. This is useful if you ever install a program that causes your computer to have a meltdown or if you make some other internal change that causes mayhem.
However, if your computer has been running fine for a while and you haven’t had any problems, you really don’t need all of those excess system restore points taking up your precious hard drive space. Here’s how to delete them:
Start > Run > cleanmgr
Open up your “Start” menu, and type “Run” in the search box. Hit enter.
In the window that opens, type in “cleanmgr”, as shown below, and then hit enter.

If prompted by the UAC, allow it to run. If you have more than one hard drive, choose the hard drive that has Windows installed on it (probably your C drive).
System Restore and Shadow Copies
Once the cleanmgr loads, select the “More Options” tab up top. In this pane, you’ll see two main functions: Programs and Features and Systems Restore and Shadow Copies. You want the latter.
All you have to do is click “Clean up…”, as shown below:

Once you click on that, Windows will ask you if you are sure. You are, so click “Delete”. Be patient — it may take a little while for Windows to finish deleting the system restore points. You will know Windows is finished when you notice that the buttons for “OK” and “Cancel” change when you mouse over them. When this happens, hit “Cancel”, or hit “OK” if you want Windows to delete other files to free up space.
And that’s it! It’s a very simple process that can make a huge difference in how much free space your hard drive has left on it.
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1. Steve Ballmer
February 4th, 2009 11:19 pm
This is what we call the Mojave experience. It’s where your O/S eats up hard drive space for breakfast. It’s not a bug, its a Microsoft certified feature.