To check activation status in Windows 11, select the Start button, and then select Settings > System and then select Activation .. Your activation status will be listed next to Activation.. Check activation status in Settings. You'll see one of these activation status messages on the Activation page:

注意: 使用安装介质重新安装Windows 11，同时选择“不保留任何内容” (干净安装) ，如果重新安装 Windows 的分区为 20GB 或更大，则将自动启用保留存储。 保留存储空间将留出磁盘空间以供更新、应用、临时文件和系统缓存使用，因此可确保关键的操作系统功能始终可以访问磁盘空间，从而改进了电脑 ...

Step 2: Back up your folders. Windows Backup is an easy, single stop for all of your backup needs. Your free Microsoft account comes with 5 GB of OneDrive cloud storage (and more storage is available if you need it), and backing up your folders syncs the folders you specify to your OneDrive account, making them instantly accessible on all computers that you use with this Microsoft account.

注意: Microsoft Authenticator 不适用于电脑或 Mac，因为出于安全原因，验证器应用通常用于智能手机。 了解详细信息。 Microsoft不再支持超过一年的 Authenticator 版本。

Support for home products. Depending on your product and if it's still in support, Microsoft support experts are available to help you with a broad selection of support options and able to address product and service challenges for a more personalized experience. Chat or receive a call back from a technical support expert: If you have a Microsoft 365 Basic, Microsoft 365 Personal, or Microsoft ...

Check the cables (for wired printers). Make sure that the printer's USB cable is properly connected from the printer to your PC. If your USB isn’t recognized, see Automatically diagnose and fix Windows USB problems. Check the wireless connection (for wireless printers).Do one of the following:

Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.

Découvrez comment obtenir les dernières mises Windows jour pour assurer le bon fonctionnement et la sécurité de votre appareil.

Use your scanner and download an app from Microsoft Store to scan a document or picture to your PC.

Windows 11 automatically downloads and installs updates to make sure your device is secure and up to date. This means you receive the latest fixes and security updates, helping your device run efficiently and stay protected.