Windows BitLocker Encryption
Simply put, BitLocker encryption ensures that the data on your drive remains encrypted (secure) if the computer is tampered with, even when the operating system is not running. If Windows thinks it's being tampered with it simply locks itself until a very long string of characters is entered. No matter how many times you reboot the computer, this prompt is nearly impossible to get past until that long string is entered.
If the below screen appears on your laptop contact IT by phone (612.617.2318) and we'll be able to provide you the information you need. We will also be able to review events on your computer to verify if this prompt was the result of nefarious activities or not.
It's worth noting...
- The remainder of this article details Self Help steps you can take if a BitLocker prevents itself and IT services are unable to quickly assist (ex: it's 5AM on a Saturday morning)
- You will unlikely "stumble" upon this article if you are presented with the BitLocker image below, so we have made it available in PDF form, attached at the end of this article.
Why am I seeing this, what's wrong with my computer!?
Yes, this is a terrifying "BSOD" but it's not as terrifying as you think. Just know that Windows is doing its job (insert Windows joke here) and securing your data, as it thinks your system is compromised.
There is likely nothing wrong with your computer, these prompts most-often appear when:
- BitLocker was not suspended or disabled prior to hardware replacement/service on your computer
- OEM (Manufacturer) hardware has been replaced (ex: new motherboard, RAM/Memory, Solid State Drive, etc.)
- You connect new hardware to your laptop (ex: docking station) that may have made changes to Windows System files
But IT isn't available to help! What do I do?
In situations where an IT team member is not available, you likely have the power to recover this information. It's not fun, but it's not going to consume hours of your life either.
- Rule 1 for BitLocker Self Recovery: do not rush, take a deep breath and carefully follow the "Key Recovery..." steps below
- Rule 2 for BitLocker Self Recovery: stop, think, comprehend. carefully read any prompts that may present themself while attempting self-recovery
- Rule 3 for BitLocker Self Recovery: follow Rules 1 & 2
Key Recovery: Self Help
You will need:
- An internet connected device (your smartphone, tablet, other computer)
- Patience and Deliberateness (see Rules 1 - 3 above)
- Open your web-browser (internet) and go to this website:
- https://aka.ms/aadrecoveryid
- Login with your Cuningham username and password
- You will be prompted to approve MFA
- Once logged in you will be taken to a page similar to the one below
- The Devices & activity section will display (maybe after a couple minutes of loading) your computer
- Click the Get BitLocker keys link next to the computer
-
If you see multiple computers:
- Look on the bottom of the problem computer
- Look for a silver "Cuningham" sticker, the four numbers displayed should match one in the list
- It might be under a "trap door"
- Match the first 8 characters of the Key ID on your problem computer to the one being displayed
- Some computers have multiple keys
- Click Show
- Enter the long string of numbers displayed into your problem computer
- Press Enter
- If the key is accepted your computer will boot into Windows
- If the key is not accepted you can try again, more carefully, entering the numbers
If you're still unsuccessful or this prompt keeps appearing:
- Contact the Emergency Hotline: 612.617.2318