If Windows came preinstalled on your PC, the product key should appear on a sticker on your device. If you’ve lost or can’t find the product key, contact the manufacturer. To ensure your product key is genuine, see How to tell your software is genuine and How to tell your hardware is genuine.

If you need to reinstall Office, select the version you want to install and follow those steps: Microsoft 365, Office 2019, Office 2016, Office 2013, Office 2010, or Office 2007. How to uninstall Office automatically.

Learn how to fix problems signing into your Microsoft account. Resolve password verification, locked account, and other Microsoft account login issues.

If you get an error code while downloading and installing Windows updates, the Update Troubleshooter can help resolve the problem. Select Start > Settings > System > Troubleshoot > Other troubleshooters. Next, under Most frequent, select Windows Update > Run.

Discusses how to remove viruses, spyware, rogue software, or malware using Microsoft Security Essentials, Microsoft Safety Scanner and Microsoft Defender Offline.

按 “Xbox“ 按钮 打开导航页。. 选择“我的游戏和应用 > 查看所有 > 应用（或完整资源库 > Xbox Game Pass > 稍后再玩”。. 注意事项：. 必须具有活动的 Xbox Game Pass 才能通过此方法查看“稍后再玩”列表。. 添加游戏之前，可能不会显示“稍后再玩”部分。. 将游戏 ...

Your PC isn't working well and you recently installed an app. Restore from a system restore point. You suspect your device has been infected. Use installation media to reinstall Windows 11. Select one of the recovery options below and follow the steps to try to get things working again.

Follow these steps to reset your Microsoft account password. If you know the email address that you used to set up your Microsoft account (which is used to sign in to your Xbox profile), you can reset your password now: Go to Reset your password and enter your email address.

If you feel like you’ve been the target of a technical support scam, you can help Microsoft stop cybercriminals by reporting it. Learn more about avoiding technical support scams.

The enablement package is a great option for installing a scoped feature update like Windows 10, version 22H2 as it enables an update from version 2004, 20H2, 21H1, or 21H2 to version 22H2 with a single restart, reducing update downtime. This enables devices to take advantage of new features now.