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05-28-2017

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X270 Bitlocker requests recovery key every time

2017-05-28, 12:01 PM

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

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14 Posts

05-09-2016

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Re: X270 Bitlocker requests recovery key every time

2017-06-01, 11:00 AM

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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6485 Posts

10-29-2009

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Re: X270 Bitlocker requests recovery key every time

2017-06-01, 13:55 PM

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.

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Re: X270 Bitlocker requests recovery key every time

2017-06-01, 14:14 PM

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

 

 

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Re: X270 Bitlocker requests recovery key every time

2017-06-01, 14:36 PM

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

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Re: X270 Bitlocker requests recovery key every time

2017-06-01, 15:20 PM

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

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3 Posts

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Re: X270 Bitlocker requests recovery key every time

2017-06-04, 7:49 AM

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 .

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82 Posts

07-19-2017

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Re: X270 Bitlocker requests recovery key every time

2017-07-19, 15:23 PM

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 ?

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Re: X270 Bitlocker requests recovery key every time

2017-07-19, 18:14 PM

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?

 

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Re: X270 Bitlocker requests recovery key every time

2017-07-19, 18:58 PM

Default Bitlocker settings

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