Si vous installez Windows sur un nouvel appareil ou une carte mère pour la première fois et que vous n’avez pas de clé de produit, sélectionnez Je n’ai pas de clé de produit pendant les écrans d’installation. À l’invite, entrez le compte Microsoft à utiliser pour acheter une licence numérique pour cet appareil.

Can't see Restore from backup? If you don't see Restore from backup or Begin recovery when opening Authenticator, you will need to remove or sign out of all accounts to restore your account credentials.Learn how.. Unable to restore Authenticator account credentials. If you are unable to recover or restore your Authenticator's account credentials because you cannot access your backup account ...

Note: If you receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android). select Allow so the authenticator app can access your camera to take a picture of the QR code in the next step.If you don't allow the camera, you can still set up the authenticator app as described in Manually add an account to the app.

若要在 Windows 11 中检查激活状态，请选择“开始 ”按钮，然后选择“设置 > 系统 ” ，然后选择“激活 ”。 。 激活状态将在“激活”旁边列出。 在“设置”中检查激活状态. 你将在“激活”页面上看到以下一条激活状态消息：

Battery Life: Lowering your refresh rate can save battery power by reducing the amount of energy your display consumes.This can be useful when you are using a laptop or tablet and want to extend your battery life.

Virtualization lets your Windows device 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 device.

In the upper left corner of the window, select the app launcher > SharePoint Tip: If you don't see the SharePoint app after selecting the app launcher, you can find it by either selecting More apps, or using the Search box near the top of the window to search for SharePoint.

To adjust power and sleep settings in Windows 11, select Start > Settings > System > Power & battery > Screen, sleep, & hibernate timeouts. Turn my screen off after: Select how long you want your device to wait before turning the screen off when you're not using your device, both when it's plugged in and when it's on battery power.

After setting up web protection, we'll set up anti-malware protection.To do this we need to ask for a couple more permissions. Access device storage. Microsoft Defender scans apps and files on your device to watch for possible threats.

Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.