I recently tried to download and install a few Windows 7 updates, but the auto-updater kept aborting the process with the error number “8007051a”. There was no particularly descriptive error message. At first I thought that it was just some server that could not be reached. But when it still didn’t work after days, I began to investigate and found a solution in the Microsoft forums.
The problem is apparently caused by faulty system files. To find and repair them, there is the System File Checker (
sfc.exe). And here’s how you use it:
- Start Menu → “All Programs” → “Accessories” → right click “Command Prompt” → “Run as administrator”. Should you be prompted for an administrator password or a simple confirmation, type in the password or click “Allow”.
- At the command prompt, type the following command and press “Enter”:
The program will now scan all system files and replace incorrect versions with the correct ones from Microsoft. After that, the automatic update should be working again.