Learn how to reinstall Windows on your PC and how activation works after it's installed.

This content can help you with your work or school account, which is the account provided to you by your organization (for example, dritan@contoso.com).

Get help with Skype for Business. Skype for Business 2016 Training. Video: What is Skype for Business? Video: Download and install Skype for Business (video)

Learn how to change settings to enable Secure Boot if you are not able to upgrade to Windows 11 because your PC is not currently Secure Boot capable.

Learn how to concatenate text strings in Excel using the CONCATENATE function. Our step-by-step guide makes it easy to join two or more text strings into one.

With Microsoft Edge, you can turn on sync to browse the web on all your devices, keep your favorites organized, and more.

How to embed a video in PowerPoint from YouTube or another online site.

If you’re having problems sharing by using nearby sharing, here are some things to try to get things working. For more info about nearby sharing and how to use it, see Share things with nearby devices in Windows.

Import to Outlook app. Import email messages, contacts, and other items into Outlook for Mac. Import a .pst file into Outlook for Mac from Outlook for Windows

了解适用于 Windows 的“照片”应用如何让你查看电脑中的照片和视频以及 OneDrive 中的照片和视频，并按日期、相册或文件夹进行整理。