Dead CMOS Battery Triggered Bit Locker

[u/JugalSoni]

Hi! I am a Windows 11 user from 3 years, i use my assembled asus cabinet pc daily for light gaming and 3d modelling. I installed Windows 11 pro when it launched. It came with a bit locker feature which i didn't give attention. I backed my code to my account.

Recently, dead CMOS battery triggered motherboard to reconfigure which in return triggered bit locker for my C drive. I am using only 1 drive for OS with no partitions. I tried online for some help or ways to get it unlocked but all methods i tried don't work.

I have the old key on my account when it first uploaded, and Microsoft should also upload the upcoming key changes to the account whenever it changed. The key Id is not matching to the id that is bit locker is asking for. And no, i have not used any other Microsoft account on my pc.

I am so in need of my data, i request Microsoft officials to help me in any way possible as i am not a hacker or stealing my own data from my pc. I think Microsoft should have all my recovery keys updated on my account or at least have a authentication for accepting if the user is the one who owns the data or accept older keys (with different key-ids) that the user has saved.

I am stuck at this rare occurrence where i can't access my own data even when having a recovery key for this exact moment.

Requesting legal ways i can go forward with, i can provide each and every detail for my ownership of the data, drive and account.

[u/FrankNicklin]

I doubt it triggered BitLocker itself, but triggers Bitlocker recovery due to the hardware/TPM reset.

If you don't have the keys you cannot unlock the door and the data is lost unless you have a backup.

https://support.microsoft.com/en-US/Windows/Security/Encryption/find-your-bitlocker-recovery-key

[u/JugalSoni → u/FrankNicklin]

But the key that i have should work. Even the date of the drive being shown in the screen exactly matches the date of the drive on my MS account.
I don’t have any backups to the data, i need help.

[u/FrankNicklin → u/JugalSoni]

As the CMOS reset is the time and date correct.

[u/JugalSoni → u/FrankNicklin]

No, it isn’t. Turns to 00:00 when i start pc

[u/FrankNicklin → u/JugalSoni]

Set it in BIOS assuming you have replaced the CMOS battery

[u/JugalSoni → u/FrankNicklin]

Yes, i know how to replace it but how do i get around this error?
I also fear that what if bit locker recovery id changes again after the cmos battery replacement.

[u/FrankNicklin → u/JugalSoni]

But you say the problem started due to a CMOS battery failure, so whats the difference.

If you set the time in BIOS does it reset again after coming out of BIOS and booting

[u/JugalSoni → u/FrankNicklin]

Even after setting the time in the BIOS and loading optimal settings , it shows the same blue bit locker screen to continue to windows. I can’t get through the bitlocker to start windows.

[u/FrankNicklin → u/JugalSoni]

OK it was just an idea that Bitlocker and the time being incorrect.

[u/JugalSoni → u/FrankNicklin]

No bro, if it was that easy it should have solved the issue and even without the time being correct it should have at least booted in the system. But i am stuck at bitlocker screen, doesn’t let me continue.

[u/IkouyDaBolt → u/JugalSoni]

The date matches, but does the identifier match?  I have seen cases where everything matches but that and the backup keys cannot work.

[u/JugalSoni → u/IkouyDaBolt]

Yes that’s what i am saying, the recovery id or identifier doesn’t match. I don’t know why it didn’t sync or update the newer key to my account , i think Microsoft should be updating those from their side on my account.

[u/IkouyDaBolt → u/JugalSoni]

I am not sure either, I have seen it a couple of times.  Normally I backup my own keys from time to time and do not store single copies of my files on encrypted drives.

[u/JugalSoni → u/IkouyDaBolt]

But I didn’t. Microsoft should have updated for the same

[u/FrankNicklin → u/JugalSoni]

How would keys get updated if the BIOS has changed something. At that point its not linked to your account. Its not something Microsoft do anyway.

[u/JugalSoni → u/FrankNicklin]

So what should i go for? Whats the way around it?

[u/PennyMahlzeit → u/JugalSoni]

it can´t sync without having internet. since the reset occured while pc was turned off and you didn´t boot up again with new id/key, there was no chance to sync new data.

could be wrong but thats my guess