Storage space is cheap however that doesn’t mean you can throw a lot of storage without bothering what is taking up space. Recently, one of my clients in manufacturing space has his on-premise servers running out of the disk space. I have looked into obvious locations where space could be recovered like recycle.bin, temp folders, log directories etc. Usually I use Tree Size Free to see size of all folders. It’s pretty nifty utility and shows the size of folders in descending order.

I noticed that System Volume Information size has grown to nearly 47 GB and squeezing the life out of OS and other LOB applications. Usually the System Volume Information folder would store previous versions of the files/folders in case you need to recover. Unlike Windows 7 and above you could use GUI / System Protection and configure the System protection based on your needs.

In this case we don’t have System Protection option under System Properties.

In order to modify the settings, we need to use vssadmin from elevated command prompt.

From Elevated command prompt run the following command vssadmin show shadowstorage

You can now see used / allocated / maximum shadow copy storage space. We are going to modify this to reduce the space as we have an alternate backups and we don’t really need a shadow copy in this case. We will resize the shadow storage space and set to 5 GB for C drive.

vssadmin resize shadowstorage /on=C: /For=C: /Maxsize=5GB

If you run the following command iteratively vssadmin show shadowstorage you will notice that the shadow space will start to reduce gradually.

Hope this helps !