Missed activity emails. In the Missed activity emails section, you’re able to set the frequency of summary emails detailing your missed activity, or turn this feature off.. Chats and channels notifications. Notifications for chats and channels can be managed at a granular level, allowing you to customize your notifications to your personal work style.

Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.

Tip: If you encounter a problem on your Windows device, pressing the Windows logo key + F takes a screenshot, then opens the Feedback Hub app and automatically uploads the screenshot to the Feedback tab. Follow the on-screen instructions to detail the problem you've encountered.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Learn how to log in to Microsoft Teams with your Microsoft 365 account. This step-by-step guide from Microsoft Support walks you through the process of accessing Teams on desktop, web, and mobile devices.

Select Notifications to expand it, and turn notifications, banners, and sounds on or off for some or all notification senders.

解决激活错误. 如果 Microsoft 365 无法激活，其最后会变为未授权，且 Microsoft 365 的所有编辑功能都会被禁用。 Microsoft 可能由于多种原因变为未授权。

Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.

Under Personalization & advertising, turn on or off the setting for Allow Microsoft to save your browsing activity including history, usage, favorites, web content, and other browsing data to personalize Microsoft Edge and Microsoft services like ads, search, shopping and news.

After you export your contacts, use Excel to open the CSV file and check that there's data. When you close the file, Excel will prompt you a few times with "are you sure you want to save it in CSV format?"