SYSTEM restore is a prominent utility in Windows that can recover files and settings in case of a system crash. It is a must to turn on this feature, but at the same time, it uses a lot of disk space as well. You can limit the amount of disk space system restore uses by executing some commands in the command prompt.
To do so:
Click "Start" and type "cmd" in the"Search" box. Type the command "vssadmin list
shadowstorage" and press the [Enter] key. You will now be able to view the amount of disk space system restore has occupied.
vssadmin Resize ShadowStorage /For=C: /On=C: /Maxsize=512MB
and press the [Enter] key. Here C: is the drive name whereas 512MB is the storage size.Change the size to whatever you want/need. Obviously for any other disks you would need to change C: to that drives letter.