Select Start > Settings > System > Activation . Select Change product key, and then enter the 25-character product key. Open Activation settings. If you've made a major change to your device's hardware, such as a motherboard replacement, run the Windows Activation troubleshooter located on the activation settings page.

From the next screen, select Troubleshoot > Advanced options > UEFI Firmware Settings > Restart to make changes. To change these settings, you will need to switch the PC boot mode from one enabled as “Legacy” BIOS (also known as “CSM” Mode) to UEFI/BIOS (Unified Extensible Firmware Interface). In some cases, there are options to enable ...

Sign in to Microsoft 365 admin center with your Microsoft 365 admin account, and select Support > Help and support, enter your question and select Contact support. If you're an admin on the account you can also call (800) 865-9408 (toll-free, US only). If you’re outside the United States, see the global support phone numbers. Business Assist ...

If you have turned on passwordless, two-step, or multi-factor authentication for your account, use the following steps to sign-in: Enter your username at the sign-in prompt and select Next. Select Send notification. You will be prompted to Check your Authenticator app and may also be shown a number. On your mobile device, open Authenticator, or ...

Windows 11 でカメラが動作しない場合は、最近の更新後にドライバーがなくなっている可能性があります。 また、ウイルス対策プログラムによってカメラがブロックされている、一部のアプリでカメラへのアクセスが許可されていない、使用するアプリに問題があるなどの可能性もあります。

Hide columns. Select one or more columns, and then press Ctrl to select additional columns that aren't adjacent. Right-click the selected columns, and then select Hide. Note: The double line between two columns is an indicator that you've hidden a column.

Add people to your family group. You can create a Family Group by adding members to your Family. If someone is already part of a family group, they must leave or be removed from that group before joining another. They can also create a new Microsoft account to associate with a new family group. Explore Microsoft Family Safety features and benefits.

Eine App zum Scannen von Dateien wie Windows-Scanner, die kostenlos im Microsoft Store erhältlich ist. Mithilfe der App Windows-Scanner können Sie Bilder oder Dokumente scannen und als JPEG-, Bitmap- oder PNG-Dateien auf Ihrem PC speichern. Weitere Informationen finden Sie unter Installieren und Verwenden eines Scanners in Windows. Get ...

添加验证 Microsoft 帐户登录的方法. 登录到 Microsoft 帐户的 “高级安全选项 ”页。. 登录. 选择“ 添加新的登录方式或验证 ”，然后选择接收安全代码的方式。. 注意: 无法添加 VOIP 号码作为登录或获取验证码的一种方式。. 我们会将安全代码发送到新号码或电子 ...

ここでは、新しい Microsoft Edge に関する一般的な問題の解決方法を示します。 Microsoft Edge が繰り返しクラッシュする場合 Microsoft Edge を開くことができない場合や、一時的に開いてからすぐに終了する場合、特定の Web ページを開くことができない場合は、次の手順を試すことができます。