Find out how to fix sound or audio problems in Windows.

Learn how to update drivers in Windows using Device Manager to update or reinstall a driver.

Update Surface devices and Windows. Download the latest drivers and firmware updates to keep your Surface devices performing their best.

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 open and run DxDiag.exe on Windows to collect device information and troubleshoot DirectX sound and video issues.

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

デバイスで Windows 11 を実行できることの確認から、ファイルのバックアップと Windows 11 のインストールまで、Windows 11 アップグレードの準備の方法について説明します。

Learn how to find and change settings in Windows. Find your Windows settings in a snap! Select the Start button, then select Settings .From there, browse the categories or use search to find what you're looking for.

Learn different ways to locate your BitLocker recovery key in Windows, and learn about how BitLocker might have been activated on your system.

Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.