Assistance for billing and subscription management issues is available online help when Outlook freezes 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. For billing and subscription management support, the highest severity level is B. Presales support for Microsoft 365 operated by 21Vianet provides assistance on subscription features and benefits, plan comparisons, pricing and licensing, and helps to identify the right solution to meet your business needs.
If you still need help, select Contact Support to be routed to the best support option. The type of support Microsoft provides for consumers depends on the product you're calling about and help when Outlook freezes 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 subscription. Learn how to manage the account you use to access your work or school email and file
Explore learning tools to collaborate on projects together and independently, all in one place. With Microsoft 365, you can install Microsoft 365 or Office on all your devices and sign in to Office on five devices at help when Outlook freezes the same time. The Microsoft 365 Copilot app brings together your favorite apps in one intuitive platform that keeps your data secure with enterprise data protection. Keep your business connected from anywhere with chat and cloud collaboration tools. Microsoft 365 empowers your organization to organize, and safely store files in OneDrive with intuitive and easy organizational tools. For technical support, go to Contact Microsoft Support, enter your problem and select Get Hel
Sign up for a free trial of Business Standard for up to 25 users and experience how Microsoft 365 empowers your business to get more done from anywhere and helps keep data safe with built-in security. Find and edit files, scan documents, and create content on the go with access to Copilot Chat, productivity apps, and more — all in one place. 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.
You'll authenticate using two-factor verification before accessing sensitive configuration parameters. API integration capabilities allow seamless connection with existing infrastructure management systems. You'll appreciate the algorithm transparency—each diagnostic step is clearly documented, showing exactly which parameters triggered alert
In addition, presales support can help you find a Partner, and purchase and sign up for a trial. Presales support can be accessed using the same phone number as with technical support. Initial response time is based on the severity levels described in Technical support case handling.
If your Microsoft Outlook won’t open after a recent Windows update, you’re not alone. Many users encounter startup freezes, profile loading loops, and crashes following major Windows patches or Office updates. Fortunately, most of these errors stem from configuration conflicts, corrupted data files, or outdated components that can be fixed with a few help when Outlook freezes targeted steps. Start by verifying identical account settings across all devices, ensuring consistent server configurations and authentication methods. Check network connectivity and firewall restrictions that might block synchronization port
Office 365 operates and help when Outlook freezes uses different domains for various products and services. This tool is a standalone application, you can install on your computer. It runs multiple tests in terms of configuring and solving any potential proble
Ask the user to sign in to Outlook on the web to verify that their Microsoft 365 email account is working correctly. If only one user reports having trouble receiving email, there might be a problem in their email account or their email app. Have the affected user try the following methods before you move on to admin-specific tasks. If you're a Microsoft 365 user, then you can download and install the Microsoft Support and Recovery Assistant. Then you just need to run the application, and it will diagnose and fix any issues help when Outlook freezes with your Outlook profile automatically. The same steps can also be used to check your junk mail filters in the new version of the desktop email client for Window
The tool will ask you to enter the email address or mobile phone number you're trying to sign in with and check the details you provide. If we detect a problem with your account, we'll tell you what you need to do to solve the problem. If we don't detect any problem, we'll guide you through how you can help yoursel