Originally Posted by Alvin L. Villaflores
This may be from System Restore Points. You can run Disk Cleanup to delete all but the most recent one. See step 15 in this tutorial for how. Disk Cleanup
You can also change the maximum disk usage size the System Restore can use. This tutorial will show you how. System Restore - disk space
Of course, you can disable System Restore if you make good regular backups to save the space to. This tutorial will show you how. System Restore
If you have a HP brand computer, then you may also have a "HP Backup and Recovery" program that is taking up the space. It's HP's version of System Restore. You can uninstall it through Programs and Features.