After you restart a computer running Windows and no one has logged on, you may be unable to log on to the computer either locally or to the domain. This computer is in use and has been locked. Only or an administrator can unlock this computer. Press Ctrl + Alt + Del to unlock this computer.

Trouver votre appareil Windows. Accédez à https://account.microsoft.com/devices et connectez-vous. Sélectionnez l’onglet Trouver mon appareil. Sélectionnez l’appareil à localiser, puis, sélectionnez Trouver pour voir une carte montrant la localisation de votre appareil.

Find My Device is a feature that can help you locate your Windows 10 or Windows 11 device if it's lost or stolen. To use this feature, sign in to your device with a Microsoft account and make sure you're an administrator on it.

In your Microsoft account: Open a web browser on another device. Go to https://account.microsoft.com/devices/recoverykey to find your recovery key. Tip: You can sign into your Microsoft account on any device with internet access, such as a smartphone.

Troubleshooting verification code issues. Avoid and report Microsoft technical support scams. Learn how to unlock your Microsoft account and resolve 'account has been locked' error message.

If your device is missing, and you've signed in to it with your Microsoft account, you might be able to find it. To find or fix your device: Sign in to account.microsoft.com/devices. Find the device you want to find, then select Show details. Either select Find my device.

Learn how to access and manage your Windows sign in options. Use a password, Windows Hello, or a security key to unlock your device.

Find or lock a device in your Microsoft account. If your device is missing, and you've signed in to it with your Microsoft account, you might be able to find it. Here's how: Sign in to account.microsoft.com/devices, then select Find my device. Select the device you want to find, then select Find.

A red bar across the top of your screen that shows an unlocked lock icon. If you see this screen, Secure Boot is turned off. Secure Boot is an important security feature designed to prevent malicious software from loading when your PC starts up (boots). Try the solution below. Solution: Turn on Secure Boot.

Sign in to account.microsoft.com/devices. Find the phone you want to lock remotely in the list, and the select Find my phone . Select Lock. Enter a new PIN, and then select Lock. You'll now be able to unlock your phone with a new PIN.