Clean Previous Windows Installation Files

Clean the previous windows installation files from the system partititon to free up Hard disk space in Windows 8

Delete unwanted system files from previous installation of Windows

As you might have noticed in the below picture,Your system partition or partition in which windows is installed (Usually C: Drive) might get filled up by the files from previous windows installation when upgrading from one version of windows to another.

(like upgrading from "Windows Vista" to "Windows 7" OR from "Windows 7" to the latest,"Windows 8").

(If you install your new windows version without formatting the previous installation partition)

Note : The same procedure can be used for other versions of windows with minor changes.

This guide applies to Windows 8.

C: drive almost full

1. Start the control panel(Search control panel in Start Menu).
2. Search 'clean' in the search box.
3. Click "Free up disk space by deleting unnecessary files".

search 'clean' in All Control panel items window

1. Disk Cleanup Window will pop-up.
2. Select the partition in which the old Operating system was installed On,in my case C: drive,select OK.

Select Disk Cleanup

Scanning system partition.....

1. After the scanning process completes, Click "Clean up System files".
2. Repeat the process and a window similar to the following one appears.
3. Tick the Check boxes for "Previous windows Installations" and "Temporary windows installation files",Select OK.

Space wasted for previous installation files

Voila....About 10 GB of my had disk space has become free!!

Space freed > 10 GB!!