培训：在 Microsoft 365 中开始使用 SharePoint。 在 office.com，登录到 SharePoint，然后选择 SharePoint 磁贴。 如果 SharePoint 确实显示在列表中，请与 IT 管理员联系以获取帮助。 向管理员显示步骤 3 中的信息。 当你登录 office.com 时，该用户应该能够使相应的应用和服务（如 SharePoint）可见。

Junk e-mail messages, also known as spam, can be a nuisance in your Inbox.The Junk E-mail Filter in Outlook identifies messages that are likely junk and moves them to the Junk E-mail folder. You can easily change the level of junk email protection or automatically delete junk email.

Learn how to tell if your Office software is genuine. To help determine if your Microsoft software is genuine, go to our How to Tell site for more information. Here you'll learn about authentic packaging, including what to look for with product key labels, and Certificate of Authenticity (COA), how to report counterfeit software, and find out what your shopping and licensing options are.

PCs originally built with Windows 8.1 are designed with technology that is about 10 years old. Once you move to a new PC, there will be many aspects of Windows that you will find familiar, but also with important software and hardware innovations and capabilities that were not available a decade ago.

To check the end-of-support dates for your version of Windows, see the product lifecycle information for Windows.. If your version of Windows is still supported, you should always install the latest updates for Windows.To download and install these updates, use Windows Update in the Settings app.