Find your BitLocker recovery key - Microsoft Support
Learn how to find your BitLocker recovery key in Windows.
Create a recovery drive - Microsoft Support
To create a recovery drive: In the search box on the taskbar, search for Create a recovery drive and then select it. You might be asked to enter an admin password or confirm your choice. Select Create. Many files need to be copied to the recovery drive, so this might take a while.
Back up your BitLocker recovery key - Microsoft Support
In most situations, your BitLocker recovery key is automatically backed up when BitLocker is first activated: If you’re using a device that’s managed by your work or school, the BitLocker recovery key is typically backed up and managed by your organization’s IT department.
Recovery options in Windows - Microsoft Support
Learn about the recovery options in Windows. Find out how to reset your PC, go back to a previous version of Windows, or use media to reinstall Windows.
Creating and using a USB recovery drive for Surface
Download and create a factory recovery image for your Surface. Before you begin. A recovery drive lets you reset your Surface to its factory settings and can help you troubleshoot and fix problems with your Surface device. Windows comes with a built-in tool to create a USB recovery drive. You'll need to provide an external USB drive that:
Find your Windows product key - Microsoft Support
The product key is preinstalled on your PC, included with the packaging the PC came in, or included on the Certificate of Authenticity (COA) attached to the PC. For more info, contact your hardware manufacturer, and for pictures of authentic product keys and COA labels, see How to tell your hardware is genuine .
Restore account credentials from Microsoft Authenticator
Sign in to your recovery account using the personal Microsoft account you used during the backup process. Your account credentials will be recovered to the new device. Can't see Restore from backup?
Help with the Microsoft account recovery form
If you have not turned on two-step verification and don't recognize any of the verification email or phone options when trying to reset your password, use the Sign-in Helper tool. Filling in the account recovery form can take time: try the account Sign-in Helper tool first.
Use Bootrec.exe in the Windows RE to troubleshoot startup issues
When you use the Recovery Environment (Windows RE) to troubleshoot startup issues, first try the Startup Repair option in the System Recovery Options dialog box. If this does not resolve the issue, or if you have to manually troubleshoot additional issues, use the Bootrec.exe tool.
KB5014754: Certificate-based authentication changes on …
May 10, 2022 · CVE-2022-34691, CVE-2022-26931 and CVE-2022-26923 address an elevation of privilege vulnerability that can occur when the Kerberos Key Distribution Center (KDC) is servicing a certificate-based authentication request.
Recover lost or deleted files - Microsoft Support
Learn how to recover files that have been lost, deleted, or accidentally changed.