Below we provide a more detailed list of issues and corresponding solutions. These add-ins can cause issues such as app crashes or significant performance degradation. Reboot your system and try to launch your Outlook app after to check if the synchronization issues are solve


If you want to use Office 365 applications installed on a terminal server, you should use Office 365 Pro Plus, which supports Shared Computer Activation. Read the blog post about using Office 365 on a terminal server. The type of support Microsoft provides for consumers depends on the product you're calling about and if you have a product for home or for business use. It can also depend on if you want help for an issue with a service like OneDrive or Outlook.com, or help with Windows, but you don't have an existing Microsoft 365 subscriptio

Assistance for billing and subscription management issues is available online or by telephone during China business hours (Beijing Time), Monday through Friday. Billing and subscription management support can be accessed using the same phone number and online service request process as with technical support. The support telephone number can be found on the Microsoft 365 operated by 21Vianet portal. 2 Severity A is only available to customers who signed an advanced online service agreement with 21Vianet through a sales account manager.


Office 365 operates and uses different domains for various products and services. Accounts can be locked due to various reasons, such as if you type in the incorrect login details multiple times. When an Office 365 account is locked, nobody can sign in to microsoft 365 repair and recovery i


If you haven't installed alternative security microsoft 365 repair and recovery software, you should temporarily turn off Windows Defender Security Center. Before you begin, make sure that your device has the latest operating system and app updates. Try the general troubleshooting solutions in Troubleshooting Mail and Calendar apps for Windows 10. We're sorry you're having problems with the Mail and Calendar apps for Windows 1

Check out all of our small business content on Small business help & learning. For more information about the availability of support throughout the life of your product, visit the Microsoft Lifecycle Policy. See the table below for the type of support you can get depending on your product.


I've read about the issue you are having with Microsoft Office and will be happy to help. In order for the recovery process to be available is the two-factor authentication disabled. Issues can also arise from incorrect account permissions, which can affect access to various Office 365 features. In these cases, direct escalation to Microsoft or working with a Microsoft CSP partner, such as TrustedTech, can expedite microsoft 365 repair and recovery resolution and minimize downtim


If your problem is how quickly mail populates, change the download preference to headers then full items. Change the limit to 1 year, wait for the sync, check the size of the OST once Outlook confirms all sync has been completed. Outlook has a hard limit of 50GB per OST, decrease the period of e-mails that get cached, delete the cache, and re-run the sync. If you're using an Exchange account that requires advanced settings, you'll need to remove the account and add it again using advanced settings. To add the account using advanced settings, see Add an account using advanced setup. If you're using an Outlook.com, Microsoft 365, or Exchange account, you won't have advanced mailbox settings unless the account was set up using advanced setu


The sign in location for Office 365 Germany is, portal.office.de. The sign in location for Office 365 operated by 21Vianet in China is, login.partner.microsoftonline.cn/. You can only do this if your admin has given you permission to update your password in Microsoft 36


There's nothing helpful in Microsoft community forum to solve this problem. Outlook is loved by millions of happy users. In a recent Tech Support Showdown, Microsoft was ranked 5th when it came to customer support (down from 4th place the year before


The OST Integrity Check Tool runs only on .ost files and can be used to diagnose and repair synchronization issues. It scans your local copy of the .ost file and your mailbox on an Exchange Server. The tool compares items and folders in the file and in your mailbox and tries to reconcile synchronization differences between the files and the mailbox. The OST Integrity Check Tool does not change your mailbox on the Exchange Serve

Self-service support is available for all Microsoft 365 operated by 21Vianet users, and includes troubleshooting tools and videos, help articles and videos, as well as forums and wikis in the Microsoft 365 community. For more self-help resources, see Microsoft 365 operated by 21Vianet. You must be an admin for a business subscription to use these support methods. Explore learning tools to collaborate on projects together and independently, all in one place. Create equitable learning environments that help students develop knowledge with familiar apps essential to both academic and future career success.