When you try to install Office you may get an error message that says, We’re sorry, but we could not start your Office installation. Another installation is in progress, please try again later. Or the error message might contain one of these error codes 0-1018, 17003-2031, or 2035-0.
This error usually occurs if another installation, update, or uninstall was running before you tried to install Office.
Check for an Office icon in the Windows system tray and click it to check the install progress. If an install is already running, wait until it's done before you start your Office install.
If you can't find an Office icon in the system tray, follow the steps below to restart Office and then try the installation again. If that doesn't work run the uninstall too to clean up any full or partial Office installations and then reinstall Office.
Restart your computer and reinstall Office
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Restart your computer.
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Reinstall Microsoft 365.
To reinstall Office, select the version you want to install and follow those steps.
Uninstall and reinstall Office
Use the uninstall troubleshooter to uninstall Microsoft 365, Office 2021, Office 2019, or Office 2016 from your Windows PC.
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Select the button below to start the uninstall troubleshooter.
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Click Open if you get a pop-up window indicating This site is trying to open Get Help.
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Follow the prompts on the remaining screens and when prompted, restart your computer.
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Select the steps for the version of Office you want to install or reinstall.
Microsoft 365 | Office 2024 | Office 2021 |Â Office 2019 | Office 2016
Important:Â
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The uninstall troubleshooter currently can't uninstall Office 2024.
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Run the troubleshooter on the same Windows PC with the Microsoft 365 or Office product you want to uninstall.
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You need to be on Windows 10Â or higher to run the troubleshooter.
Tip: If the Microsoft 365 uninstall troubleshooter doesn't completely uninstall Microsoft 365 or Office from your PC, you can try to manually uninstall Office.
