Here is a great way to recover hard disk space from your computer by clearing out the installer directory. This directory is just used for Windows to install updates and patch the computer. Once the computer is patched these files are basically obsolete and are no longer required. So it would be nice every now and then to delete these system patch files.
Here is the easy way how.
Click on your Windows key button + R to open the Windows run command prompt.
In Run command prompt type the following: %windir%\Installer
and then just highlight and delete all the files in this folder.