Learn how reserved storage works in Windows to conserve disk space for temporary files, caches, and other files.

Learn more about updates for Windows 10 version 1903, including improvement and fixes, any known issues, and how to get the update.

Sharing your notes is easy in OneNote for Windows 10. You can invite others to view a specific page or an entire notebook, and you can select whether notebook participants can only view or fully edit your notes.

Find out how to submit a request for a refund for a purchase of digital Xbox content.

Learn how to turn on HDR video streaming to watch high dynamic range (HDR) content on your Windows PC.

Explains how to sync your Google, Yahoo, iCloud, and IMAP mail, contacts, and calendar to the Microsoft Cloud.

Learn what to do if you receive a message in Mail or Calendar for Windows 10 that your account settings are out of date.

Set up the Microsoft Authenticator app from the Security info page. Depending on your organization’s settings, you might be able to use an authentication app as one of your security info methods.

Learn how to install Skype for Business on your Windows computer, mobile device, or Macintosh.

获取 Microsoft Edge 的帮助和支持。 查找 Microsoft Edge 支持内容、操作方法文章、教程等。