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- Contact Us - Microsoft Support
Contact Microsoft Support Find solutions to common problems, or get help from a support agent
- Download Microsoft Authenticator - Microsoft Support
The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification
- Customer service phone numbers - Microsoft Support
For volume licensing support, open your Microsoft 365 admin center, select Help support, and search for "manage volume licensing" or submit an online support request Don't forget to include your license ID or agreement number, your contact phone number email address so we can contact you
- Signing in with a passkey - Microsoft Support
With passkeys, you can sign into your Microsoft personal account or your work school account using your face, fingerprint, or PIN Signing in with a passkey is simple and fast and helps protect you against phishing attacks Passkeys are supported on desktop and mobile browsers (mobile app support is coming soon)
- SQL Server Management Studio (SSMS) 21 is now generally available (GA)
The SQL Tools team is thrilled to announce the general availability of SQL Server Management Studio (SSMS) 21 nbsp; SSMS 21 GA brings a modern installation
- Microsoft Authenticator のダウンロード
Microsoft では、1 年以上前の Authenticator バージョンはサポートされなくなりました。 常にデバイスを最新の状態に保ちます。 2025 年 7 月以降、Authenticator のオートフィル機能は動作を停止し、2025 年 8 月から Authenticator でパスワードにアクセスできなくなります。
- Use the System File Checker tool to repair missing or corrupted system . . .
Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows
- Redeem a gift card or code to your Microsoft account
Learn how to redeem a gift card, code, or Office product key and spend your balance at Microsoft Store online, on Windows, or Xbox
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