Windows 7 service pack 1 fails to install 800b0100

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What are you looking for? Preferences Community Newsletters Log Out. Ed Bott Senior Contributing Editor Ed Bott is an award-winning technology writer with more than two decades' experience writing for mainstream media outlets and online publications. Full Bio. If you decide to press ahead with an SP1 installation, some basic precautions are in order, the same ones you should use with any important upgrade: Create a manual System Restore point first.

That gives you the option to roll back to the current configuration in the event of a problem. Click Start and type restore point in the search box to see the Create a restore point option.

Perform a manual image backup of your system drive before starting the SP1 install. Every version of Windows 7 offers the option to create a system image that can be saved on an external hard drive and restored from a repair disk.

The process is quick and easy, and it provides a foolproof recovery option even from a worst-case failure. To create a backup image, type backup in the Start menu search box and use the Backup and Restore utility. My Profile Log Out. Add Your Comment. Please review our terms of service to complete your newsletter subscription. Your PC might restart a few times during the installation. Select the link in the table that corresponds with the version of Windows running on your PC.

On the Microsoft Download Center page, select your language and then select Download. It might take a few minutes for the tool to download and install. To install the tool immediately, select Open or Run and then follow the instructions. To use the tool later, select Save and download the installation files to your PC.

On the Installation complete screen, select Close. In the search box, enter troubleshooter and then select Troubleshooting from the list of results. Under System and Security , select Fix problems with Windows Update and then follow the instructions.

Windows 7 More Support for Windows 7 ended on January 14, We recommend you move to a Windows 11 PC to continue to receive security updates from Microsoft. Need more help? Join the discussion. Was this information helpful? Yes No. Thank you! Any more feedback?