Learn how to activate Windows using an internet connection, automated system, or live support advocate.

Activation helps verify that your copy of Windows is genuine and hasn’t been used on more devices than the Microsoft Software License Terms allow. This article will help you troubleshoot and fix common activation errors in Windows. For help finding your product key, see Find your Windows product key.

Windows 8 and later versions Swipe in from the right edge of the screen, and then tap Search. Or, if you are using a mouse, point to the lower-right corner of the screen, and then click Search. Type SLUI 04, and then tap or click the displayed icon to open the wizard.

Error 0xC004C003 occurs when a licensing code component tries to access a registry hive without proper access. A resulting access denied error causes the product key not to be extracted correctly. This issue is not present on devices that run the January 2021 security release or an earlier release.

Utilisez l’Assistant Activation Windows pour activer Windows via le système téléphonique automatisé. Pour ce faire, suivez ces étapes pour votre version du système d’exploitation. Effectuez un balayage depuis le bord droit de l'écran, puis appuyez sur Rechercher.

In this case, you’ll need to provide a valid 25-character Windows 10 product key or purchase a Windows 10 digital license to activate. To buy a digital license online, select Start > Settings > Update & Security > Activation , and then select Go to Microsoft Store. In Microsoft Store, follow the instructions to buy a license for Windows.

In this case, you’ll need to provide a valid 25-character Windows 10 product key or purchase a Windows 10 digital license to activate. To buy a digital license online, select Start > Settings > Update & Security > Activation , and then select Go to Microsoft Store. In Microsoft Store, follow the instructions to buy a license for Windows.

Fixes a 0xC002001B error that occurs when you activate Windows 8.1 in offline scenarios: "On a computer running Microsoft Windows non-core edition, run 'slui.exe 0x2a 0xC002001B' to display the error text."

Windows işletim sistemlerini İnternet üzerinden etkinleştirmeye çalıştığınızda Windows etkinleştirme veya doğrulama başarısız olur. Ayrıca, aşağıdaki hatalardan birini veya daha fazlasını alabilirsiniz: Hata kodu: 0x80004005 Açıklama: Lisans Etkinleştirme (SLUI.exe) başarısız oldu.

インターネット経由でオペレーティング システムWindowsアクティブ化しようとすると、アクティブ化または検証Windows失敗します。 さらに、次のエラーの 1 つ以上が表示される場合があります。 エラー コード: 0x80004005説明: ライセンスライセンス認証 (SLUI.exe) に失敗しました。 エラー コード: 0x8004FE33説明: セキュリティで保護されたプロセッサ証明書の取得に失敗しました。 アクティブ化エラーでは、資格情報の入力は求められません。 これらの問題は、Basic 認証が有効になっているプロキシ サーバーを介してインターネットに接続するときに発生する可能性があります。