Learn how to troubleshoot and use the clipboard in Windows to paste multiple items, pin items, and sync your clipboard to the cloud.

Select Start , then select Settings > Personalization > Themes.Choose from a default theme or select Get more themes in Microsoft Store if you want to download new themes with desktop backgrounds that feature cute critters, breathtaking landscapes, and other smile-inducing options.

If you get an email about unusual activity on your Microsoft account, or if you’re worried that someone else might have used your account, go to the Recent activity page.You’ll see when your Microsoft account was signed in during the last 30 days, along with any device or app-specific info.

Learn how to change Microsoft account email address or phone number using aliases to sign into your Microsoft account.

Learn how to download the new version of Microosft Edge, based on Chromium.

Learn how to use the Microsoft Wireless Display Adapter with your Surface.

了解如何找到電腦正在執行的 Windows 作業系統版本和裝置規格。

You can refer to the contents of cells in another workbook by creating an external reference formula. An external reference (also called a link) is a reference to a cell or range on a worksheet in another Excel workbook, or a reference to a defined name in another workbook.

Xbox Support offers help for Xbox, Game Pass, and billing questions. Get advice and customer service in the Xbox Support community.

Learn how to use antivirus protection in Windows Security to protect your Windows PC against malware, viruses, and other threats.