An owner or administrator of your personal device activated BitLocker (also called device encryption on some devices) through the Settings app or Control Panel: In this case the user activating BitLocker either selected where to save the key or (in the case of device encryption) it was automatically saved to their Microsoft account.

This could mean out-of-the-ordinary activity has taken place and Microsoft has taken steps to lock down your account until you can take action. If you've experienced either of these issues, please go to How to recover a hacked or compromised Microsoft account .

To remove the app from a device using a personal Microsoft account, go to the two-step verification area of your Account Security page and choose to turn off verification for your old device. To remove the app from a device using a work or school Microsoft account, go to the two-step verification area of either your My Apps page or your organization's company portal to turn off verification ...

Unblock or unlock your account. To unblock your account, you'll need to reset your password. Unblock your account . Enter the email address of the blocked account, then enter the characters you see on your screen and select Next. Enter the code generated by your authenticator app or select Use a different verification option to get a text message. Notes: You don't need a smartphone to receive ...

In the search box on the taskbar, type Manage BitLocker and then select it from the list of results. Or, select the Start button, and then under Windows System, select Control Panel.In Control Panel, select System and Security, and then under BitLocker Drive Encryption, select Manage BitLocker. Note: You'll only see this option if BitLocker is available for your device.

Try unlocking your Windows 10 device remotely if you get this message: "This device has been locked for security reasons. Connect your device to a power source for at least two hours and then try again." The key is to reset your PIN through account.microsoft.com. If you use remote unlock, your logon PIN will be protected by Windows instead of your device's security system. Sign in to account ...

You'll see the logo screen on your screen. Continue to hold the Volume Up button. Release the button when the UEFI screen appears. If you have a Windows Pro/Enterprise device (not a Windows Home device), you can then toggle off Type Cover port from the Devices menu and exit UEFI. Re-enter UEFI (press power + Volume Up) and toggle Type Cover port back on, then check if the Keyboard works in UEFI.

You are trying to open an Excel file and you get a message about the file being locked. Sometimes the file is locked by another user, and other times the "another user" is actually you. If you have locked the file yourself, it might be because the file is open on a different device, or the previous instance of the file didn't close properly.

For help with your Microsoft account and subscriptions, visit Account & Billing Help. For technical support, go to Contact Microsoft Support, enter your problem and select Get Help. If you still need help, select Contact Support to be routed to the best support option. Admins

That verification method isn’t working right now: Sometimes the block may be tied to the verification method you are using.Try using another verification method connected to your account. For example, if you are using SMS to verify yourself and are hitting a block, try using an alternate email that is connected to the account to receive your authorization code.