Need Bitlocker Key for my SSD on that computer that fried

Paul 20 Reputation points
2026-03-20T14:36:03.2266667+00:00

I have a bitlocker encrypted drive from my personal device that is registered to my Microsoft account, and I need help recovering the key. The Key ID is [Moderator note: PII removed] and the device serial number is: [Moderator note: PII removed] 

Windows for home | Windows 10 | Security and privacy
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Sin-D 12,260 Reputation points Microsoft External Staff Moderator
2026-03-21T00:28:52.2866667+00:00

Hi Paul,

Thanks for your post. Please note that our forum is a public platform, and we will modify your question to hide your personal information in the description. Kindly ensure that you hide any personal or organizational information the next time you post an error or other details to protect personal data.  

Based on your description, this is a personal Windows 10 Home device protected with BitLocker, and the recovery key should be retrievable only through your Microsoft account if it was backed up there. Please try the following.

Step 1 – Check your Microsoft account for the BitLocker recovery key

Please sign in to your Microsoft account using a working device and visit: https://account.microsoft.com/devices/recoverykey

Once signed in:

  • Look for a recovery key that matches the Key ID shown on the BitLocker recovery screen.
  • If found, use that key to unlock the SSD.

Step 2 – Confirm whether the key was ever backed up

If you do not see any recovery keys listed on Microsoft account recovery key page, it usually means:

  • The key was never backed up to the Microsoft account, or
  • It was saved elsewhere (for example, a printed copy or a file saved manually).

Step 3 – Using the SSD on another computer (data access check)

If you connect the SSD to another Windows PC:

  • Windows will still require the same BitLocker recovery key.
  • Without that key, the data on the drive cannot be accessed.

Warning: Formatting the drive will remove BitLocker, but it will permanently erase all data on the SSD.

Step 4 – When no recovery key is available

If the recovery key cannot be found in your Microsoft account and was not saved elsewhere, Microsoft confirms that:

  • The encrypted data cannot be recovered
  • Your remaining option is to erase and reuse the drive

Official reference: Find your BitLocker recovery key

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  1. Paul 20 Reputation points
    2026-03-23T18:19:34.0033333+00:00

    Hello Sin-D,

    I found my bitlocker key! It was under a different microsoft account of mine. Even though I thought seeing the device under my first microsoft account meant that the device was only registered to that account, when I logged into my second account, the same PC was registered under that microsoft account as well and there too was the Bitlocker Key! That Bitlocker Key saved me 100+ hours of work I had lost. Thank you for the reply.

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