0x90284001 Bitlocker error

Hi,

I've been asked to put Bitlocker encryption on 10 tablets (Lenovo ThinkPad2 with 32bit Windows 8 pro) that some nurses use at my work. I 've managed to put it on 8 of them and get a PIN prompt at boot through the group policy settings. The last 2 tablets that I have to set up won't even allow me to turn Bitlocker on. It has an error message:

'code 0x90284001'

I've checked that TPM is enabled in the BIOS and I've tried to set it up in command prompt, but get the same error message. I haven't done anything different to these last 2 tablets than how I set up the previous 8 tablets, so I'm confused to where this has gone wrong. Can someone talk me through how to put this right please.

Thanks for your time,

Gary

February 13th, 2015 3:32pm

Please tell us what solved it - this will help others.
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February 14th, 2015 5:59pm

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