Information on Windows Update error 80070646 or 646

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Windows Update error 80070646 or 646

“If you receive Windows Update error 0x80070646 or 646 while checking for updates, the error indicates that Windows Installer has failed.

For steps you can take to fix this problem, see this article on the Microsoft Support website . (KB2258121 You receive error code 0x80070646 or error code 646 when you attempt to install Microsoft Office updates)

Error codes this applies to:

  • WindowsUpdate_80070646

  • 0x80070646

  • WindowsUpdate_646

  • 646

“

Rob

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