Disk Cleanup Wizard addon lets users delete outdated Windows updates (WINSXS) on Windows 7 SP1 or Windows Server 2008 R2 SP1

https://support.microsoft.com/en-hk/help/2852386/disk-cleanup-wizard-addon-lets-users-delete-outdated-windows-updates-on-windows-7-sp1-or-windows-server-2008-r2-sp1

You can download update patches in above link