How to fix 'Office 365 0x8004FC12 error' in Windows 10/11

March 2023 · 4 minute read
Office 365 Another installation is in progress fix

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  • The MS Office 365 0x8004FC12 error occurs when Windows users attempt to activate Office 365, 2013 or 2016. The 0x8004FC12 error has the following error message: “We’re sorry, something went wrong and we can’t do this for you right now. Please try again later. (0x8004FC12).” Some Windows 10 users have reported getting that error, which blocks them from activating MS Office, after recently upgrading to the platform. This is how you can fix the Office 365 0x8004FC12 error in Windows 10.

    Add a Net Local Group

    Update Windows 10

    If you’ve recently upgraded to Windows 10, there might be some updates for it. Updating the platform might also fix the 0x8004FC12 error. You can check for updates in Win 10 with the Settings app.

    Switch the Windows Firewall off

    The Windows Firewall might be hindering the MS Office activation if it’s on. So temporarily switching that firewall off might do the trick. You can switch the firewall off via the Control Panel as follows.

    Repair the MS Office Suite

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    MS Office also includes its own troubleshooter that can help you resolve errors pertaining to its applications. So that might provide a fix for the 0x8004FC12 activation error. You can open the suite’s repair tool from the Programs and Features tab as follows.

    Reset the TCP/IP in Command Prompt

    Resetting the TCP/IP can fix connection issues. The Office 365 0x8004FC12 error could be connected with those protocols. You can reset the TCP/IP by selecting Command Prompt (Admin) on the Win X menu. Then enter the ‘netsh int ip reset resettcpip.txt’ command in the Prompt window, and press the Return key. Restart Windows after resetting the TCP/P.

    Adjust the Automatically Detect Settings Option

    Those are some of the best fixes for the 0x8004FC12 error. One of those fixes will probably resolve the issue, but you can still contact MS Office support from this page. There’s also a Recovery Assistant for Office 365 tool that might fix the issue, and this Windows Report article provides further details for that tool.

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