Outlook | Windows | Classic Outlook for Windows | For home
Using Classic Outlook on Windows for personal email, calendar, and contact management
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Outlook inbox was synchronizing but would not stop after an hour. Restarted laptop. when powered back up, outlook says a dialog box is open.
Using Classic Outlook on Windows for personal email, calendar, and contact management
For general troubleshooting, see https://www.slipstick.com/outlook/basic-troubleshooting-steps-for-outlook/ .