Reclaim Hard Disk Space After Installing SP1 in Windows 7

Microsoft has released the first service pack SP1 for Windows 7 this month. After you have installed the SP1 update on your Windows 7 machine, you are left with around 530MB of backup files on the 32-bit edition of Windows 7 and around 960MB of backup files on the 64-bit edition of Windows 7. If you have no future plan for uninstalling the SP1 update (like most of Windows 7 users), then you can safely get rid of these backup files and reclaim this hard disk space. Here is how :

Note : After cleaning up the SP1 backup files, the option to uninstall SP1 will be removed and you will not be able to remove SP1 — the SP1 installation would become permanent.

  1. Click on the Start Menu (blue orb) on the left-bottom corner of your screen and type cleanmgr.exe. Right-click on the cleanmgr.exe when it appears and select Run as administrator.

    Run Disk Cleanup tool

  2. The Disk Cleanup tool window will popup. When asked, choose the partition on which your Windows 7 is installed (system partition). The system partition is shown with a windows logo icon. On my computer, Windows 7 is installed on the D: partition. For most users, it would be the C: partition.

    Select system partition in Disk Cleanup

  3. After analyzing your system the Disk Cleanup tool would show you options to select. Choose Service Pack Backup Files from the list by placing a checkmark in the checkbox as shown.

    Clean Service Pack files in Windows 7

  4. Finally, click on the OK button to start cleaning the files. You will be asked for confirmation – if you really want to delete the files permanently. Choose Delete Files as shown. In a few seconds, you will get rid of all the SP1 backup files.

    Clean SP1 Files in Windows 7