If you've already cancelled Office install, try installing Office again If the steps below don't work, see Office is taking long to install for other solutions. How you can proceed depends on whether you've already cancelled the Office install, in this case you'll need to try installing Office again or Office is still trying to install, you'll need to end the Windows Update.
Also, if Windows Installer itself is hanging, Office won't be able to get past the 90% mark. If Windows Update is using Windows Installer, the Office installation has to wait until the update process has finished with the Windows Installer.
This problem can occur if Windows Installer is busy. You're trying to install Microsoft 365, Office 2016, or Office 2013 and the installation becomes unresponsive (hangs or freezes) at approximately the 90% mark of completion. Office 2016 Office 2013 Office for business Office 365 Small Business Microsoft 365 admin More.
