Personally, I'm going to wait a month (or 2) before I run this, just to be extra safe.

The only option would be a clean install.

Once you delete the SP1 backup files, you will no longer be able to uninstall the Windows 7 SP1 afterwards. Install this update to resolve issues in Windows. CloseDirectX End-User Runtime Web Installer. In this article, we will be showing you how to download and install Windows 7 SP1, either by using Windows Update or from Microsoft Download Center. Select Language: Download DirectX End-User Runtime Web Installer. This way if you discover a issue, you will still have the option to uninstall SP1 if need be. Update for Windows 7 (KB3102810) Important Selecting a language below will dynamically change the complete page content to that language. It is recommended to wait about a week after installing SP1 to see how your Windows 7 is running with SP1 installed before deleting the SP1 backups as in the tutorial below. Afterwards, please post and let us know how much space you have recovered. To see how much space you recovered, make a note of how much free space you have on the C:/ drive in Computer before and after you run the Windows 7 SP1 cleanup tool. The Windows 7 SP1 disk cleanup tool gave me back around 1.5 GB on my hard drive. You must be logged in as an administrator to be able to do this tutorial. Don’t download this if you’re updating just one computer, instead update to SP1 directly by downloading the required updates via Windows Update.This will show you how to run the Windows 7 SP1 cleanup tool to permanently remove the backed up files created during the installation of the Windows 7 SP1 to gain back more hard drive space, and remove the Service Pack for Microsoft Windows (KB76932) entry in Installed Updates.If you’ve previously installed a pre-release version of Windows 7 & Windows Server 2008 R2 SP1 on your machine, you must uninstall that version before installing SP1.In order to download and install Windows 7 and Windows Server 2008 R2 SP1 you must currently have a Release to Manufacturing (RTM) version of Windows 7 or Windows Server 2008 R2 already installed.This enables organizations to deploy a single set of updates. It also provides ongoing improvements to the Windows Operating System (OS), by including previous updates delivered over Windows Update as well as continuing incremental updates to the Windows 7 and Windows Server 2008 R2 platforms based on customer and partner feedback.

Windows 7 and Windows Server 2008 R2 SP1 helps keep your PCs and servers on the latest support level. The RTM of SP1 is available for Free to everyone but validation is required in order to download it. As promised before, Microsoft has now officially released Service Pack 1 Final (KB976932) for Windows 7 and Windows Server 2008 R2.

Window 7 service pack 1 free download