Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

更改或删除第一页的页眉或页脚. 双击页眉或页脚区域（靠近页面的顶部或底部）以打开“ 页眉和页脚 ”选项卡。. 选中 “其他首页” 以查看是否已选中。. 否则：. 选择“ 首页不同 ”。. 删除第一页上页眉或页脚的内容。. 在页眉或页脚中键入新内容。. 若要 ...

Se connecter à Hotmail ouOutlook.com Pour vous connecter à Outlook.com ou Hotmail, vous avez besoin du nom d’utilisateur et du mot de passe de votre compte Microsoft.

Try these solutions if you can't sign in to your Outlook.com, Hotmail, Live, or MSN email account, or you're not sure how to sign in or sign out.

Learn how to find your Windows product key for activation or when to use a digital license instead.

Find out how to back up your apps, files, photos, and preferences on your Windows PC with File History and other tools.

Enable virtualization on Windows 11 PCs Virtualization lets your PC emulate a different operating system, like Android™ or Linux. Enabling virtualization gives you access to a larger library of apps to use and install on your PC. If you upgraded from Windows 10 to Windows 11 on your PC, these steps will help you enable virtualization.

You can view and clear your Microsoft Edge browsing history stored on a single device, across all synced devices, and in the cloud. You may choose to clear your browsing history at any time.

Sign in to SharePoint SharePoint is a browser-based app that you connect to through your web browser, like so: Go to office.com, and sign in to your work or school account. In the upper left corner of the window, select the app launcher > All apps > SharePoint Tip: If you don't see the SharePoint app under All apps, use the Search box near the top of the window to search for SharePoint.

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.