Chances are that you may loose a lot of space while you install Windows Service Pack 1 (SP1) or Windows Service Pack 2 (SP2), as you’ll end up installing a lot of temp files during the process, which may not be necessary. The Windows Installer will unzip the installer files which are necessary for installation, but literally are not useful after the installing is complete.
The installers will be programmed to delete the installer files once it’s job is done, but at times the Service Packs fail to remove these temporary files. Such left over files hog up hard disk space which results in less free space in the root system.
Now there is any easy way to delete all these files. You can do so by using the System Junk Cleaner which you can download from MyDigitalLife.
Download the System Junk Cleaner zip file and extract it. The extracted zip contains a .BAT script.
Run the batch script by double clicking it and it will delete most of the unnecessary, resource hogging junk files from our system. Those who have used this script have seen recovery upto a few gigabytes of hard disk space.