If you are unable to locate the BitLocker recovery key and can't revert any configuration change that might have caused it to be required, you’ll need to reset your device using one of the Windows recovery options. Resetting your device will remove all of your files.

How to back up the key. Tap the Windows Start button and type BitLocker. Select the Manage BitLocker Control Panel app from the list of search results. In the BitLocker app select Back up your recovery key. Select where you want the key backed up.

Make sure you have an internet connection. Plug your Surface into an outlet and make sure it's charged to at least 40 percent before installing updates. Keep your Surface plugged in and turned on while it's updating. Automatically update Windows 10, Windows 11, and Surface drivers and firmware.

Refunds are typically issued for requests meeting the following criteria: Requests are made within 14 days of the purchase date. Requests are for games in which you haven’t accumulated a significant amount of play time. Note As a limited exception, digital game products may be eligible for a refund within 30 days if you’re unsatisfied with ...

Use this app to try to recover lost files that have been deleted from your local storage device (including internal drives, external drives, and USB devices) and can’t be restored from the Recycle Bin.

How to redeem an Office product key. Sign in to Office.com/setup with your Microsoft account. Enter the 25-character code, and then select Next . Sign in. How to redeem a Windows activation code. On your Windows PC, go to the Activation section of the Settings app and select Change product key. Open Settings. Problems redeeming a code?

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 Command Prompt in the Search box, right-click Command Prompt, and then click Run as administrator.If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.

Windows 10 Windows 8.1 Windows 7. You can use installation media (a USB flash drive or DVD) to install a new copy of Windows, perform a clean installation, or reinstall Windows. To create installation media, go to the software download website, where you'll find step-by-step instructions.

An attacker who successfully exploited the vulnerability might bypass secure boot and load untrusted software. This security update addresses the vulnerability by adding the signatures of the known vulnerable UEFI modules to the DBX. To learn more about this security vulnerability, see the following advisory:

How to get this update. Prerequisites. Before updating to Windows 11, version 23H2 using an enablement package, you must be running Windows 11, version 22H2. You must have the following prerequisite installed before applying this update: October 31, 2023—KB5031455 (OS Builds 22621.2506 and 22631.2506) Preview or a later cumulative update.