To fix the issue, please try each of the following solutions in order. Remember, the repair process may take some time, especially for accounts with large amounts of data. Use the OST Integrity Check Tool (Scanost.exe) to check your .ost file for inconsistencies. When these symptoms occur, or you have other problems synchronizing, the problem might be a corrupted .ost file. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. You can check the error message to find the cause behind the sync issue and fix it.


How to Improve Outlook Calendar Experience with Virto Calendar App for Microsoft 365 &amp