Yesterday I installed the recently leaked RTM build of Windows 8.1 Spring Update 1 (Feature Pack) and was disappointed by the fact that my free space was considerably reduced after installing it. You may face a similar scenario and may not be able to reclaim all the disk space again just by running Disk Cleanup or CCleaner. So in this article, I would like to share with you a simple way of cleaning unneeded files from your hard drive after installing the latest Windows 8.1 updates.