error 80070490

About this tag
Error 80070490 is a Windows Update error commonly encountered when trying to install Service Pack 1 (SP1) on Windows 7. Users report that standard troubleshooting steps such as running the System Readiness Tool, manually downloading and installing the update, uninstalling all updates, and using System File Checker (SFC) often fail to resolve the issue. The error may persist even after checking the CBS log file for corruption. This tag covers discussions about failed SP1 installations and the various attempted fixes for error 80070490, including system restore limitations.
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    Windows 7 Need help installing SP1 Win7 64 bit

    I've been trying to get SP1 installed on my computer for quite a while now.. Months actually. I've tried the system readiness tool, downloading and installing manually, I tried uninstalling all updates (198).. Ended up messing this up by forgetting to set windows update to not install anything...