The System Update Readiness Tool for Windows can correct some conditions that cause Windows Update error 80073712 error. To learn more about this tool, go to What is the System Update Readiness Tool? on the Windows website.
If the System Update Readiness Tool does not correct the problem, you'll need to repair Windows. Repairing Windows won't damage your personal files or the programs that are installed on your computer.
Once you finish the repair, you'll need to rerun Windows Update to install any updates aren't included on the installation DVD. To repair Windows, follow these steps:
Close all programs, and then restart your computer.
Insert the Windows DVD into the computer's disk drive. Wait for Setup to start. If Setup doesn't start automatically, follow these steps:
Click Start, and then type Drive:\setup.exe in the search box, where Drive is the letter of your computer's DVD drive (for example, D:\setup.exe).
In the Programs list, click Setup.exe.
Click Install Now.
Click Go online to obtain the latest updates for installation (recommended).
If you're asked for it, type the Windows Product key.
In the Which kind of installation do you want? window, click Upgrade.
When the installation is complete, restart your computer, and then run Windows Update.
Error 80073712 occurs when the Windows component store is corrupt. The component store holds the files and information that's used to install updates. The System Update Readiness Tool checks and repairs corrupt files and registry data. Read the "More information" section of the Description of the System Update Readiness Tool article on the Microsoft Support website for details.
Error codes this applies to:
If you receive error 80073712 when you try to install Windows Vista updates, the Windows component store is corrupt.
The System Update Readiness Tool for Windows Vista can correct some conditions that cause this error. To use the tool, follow these steps:
Go to the Knowledge Base article
webpage. In the Information for advanced users section, find the Windows edition and system type of your computer, and then click the link to download the System Update Readiness Tool. To find your edition of Windows, see View your computer information.
Run Windows Update again.
Typically, the scan takes 15 minutes or less, but it can take longer on some computers. The Windows Update progress bar is not updated during the scan, and progress can appear to stop at 60% complete. This behavior is expected. The scan is still running and you shouldn't cancel the update.
If the System Update Readiness Tool doesn't fix the problem, you can find other possible solutions in this article
on the Microsoft website.
If you continue to see this error, see this automatic troubleshooter
on the Microsoft Support website, or go to the Microsoft Answers
website for more assistance.