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Abdulelah86
Paper Tape
Posts: 2
Registered: ‎05-28-2017
Location: SA
Views: 13,486
Message 1 of 79

X270 Bitlocker requests recovery key every time

Hello, 

 

we have a new model in our company X270 & T470 and both has issue after enabling bitlocker.

 

it's Windows 10.

 

everytime we reboot is asking for recovery key, we triyed suspned and reenable but it's the same.

 

note: past model X260 & T460 has no issue with the same configuration. 

 

please help

StewartN
Fanfold Paper
Posts: 11
Registered: ‎05-09-2016
Location: UK
Views: 13,360
Message 2 of 79

Re: X270 Bitlocker requests recovery key every time

Not much help here, but we are having the same issues as yourself, corporate Image using Windows 10 everyboot will prompt for a BitLocker key, working fine for all other models just the X270 / T470

 

I suspect something in the BIOS is causing this, but not sure what exactly.

 

Regards

 

Stewart

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Lenovo Staff
Lenovo Staff
Posts: 5,658
Registered: ‎10-29-2009
Location: NC
Views: 13,349
Message 3 of 79

Re: X270 Bitlocker requests recovery key every time

This issue happens if you are using TPM 2.0 and Win10 is installed in legacy mode.  TPM 2.0 does not support legacy mode, therefore BitLocker will prompt for the recovery key at every reboot.

StewartN
Fanfold Paper
Posts: 11
Registered: ‎05-09-2016
Location: UK
Views: 13,344
Message 4 of 79

Re: X270 Bitlocker requests recovery key every time

Hi There

 

Ref: Windows 10 x64, TPM 2.0, UEFI mode.

 

We set the Bios to use UEFI only and still get the same problem .

 

Regards

 

Stewart

 

 

Lenovo Staff
Lenovo Staff
Posts: 5,658
Registered: ‎10-29-2009
Location: NC
Views: 13,339
Message 5 of 79

Re: X270 Bitlocker requests recovery key every time

We don't see this problem here.  Can you please post a screenshot of Disk Management (diskmgmt.msc)?

StewartN
Fanfold Paper
Posts: 11
Registered: ‎05-09-2016
Location: UK
Views: 13,335
Message 6 of 79

Re: X270 Bitlocker requests recovery key every time

Hi There

 

Ignore me you are correct in your statement, we have 2 Windows 10 builds 1 for UEFI and 1 for normal Bios (we have some slightly older machines which dont have UEFI) , for some reason they were using the normal BIOS build on the T470's, UEFI is working fine.

 

Regards

 

Stewart

Abdulelah86
Paper Tape
Posts: 2
Registered: ‎05-28-2017
Location: SA
Views: 13,294
Message 7 of 79

Re: X270 Bitlocker requests recovery key every time

Solved

 

Gents, thank you for your help.

 

i just contacted lenovo with screenshot, and they give me the sulotuion.

 

we have to install windows with UEFI mode, if you have SCCM you have to change the setting in booting from the SCCM to UEFI. if you have a USB or DVD you have to made a new USB with UEFI configuration .

kuvinod7
Punch Card
Posts: 62
Registered: ‎07-19-2017
Location: US
Views: 12,722
Message 8 of 79

Re: X270 Bitlocker requests recovery key every time

Hi, 

 

We have the similiar issue with Windows 7 Legacy boot. We have changed the TPM to 1.2 and after the OS is installed, every time it prompts us to enter Recovery key. Can someone help us ?

Lenovo Staff
Lenovo Staff
Posts: 5,658
Registered: ‎10-29-2009
Location: NC
Views: 12,709
Message 9 of 79

Re: X270 Bitlocker requests recovery key every time


@kuvinod7 wrote:

Hi, 

 

We have the similiar issue with Windows 7 Legacy boot. We have changed the TPM to 1.2 and after the OS is installed, every time it prompts us to enter Recovery key. Can someone help us ?


Are you using default BitLocker settings or are you changing which PCRs that BitLocker uses?

 

kuvinod7
Punch Card
Posts: 62
Registered: ‎07-19-2017
Location: US
Views: 12,701
Message 10 of 79

Re: X270 Bitlocker requests recovery key every time

Default Bitlocker settings

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