Weird bitlocker glitch

[Alkaline]

I think its a glitch.

 

We have an iMac brought in from a staff member. It is dual boot with os x and Windows 8.1.

 

The windows 8.1 partition is Bitlocker encrypted.

 

The iMac was brought in because when its turned on, it boots fine, asked for the recovery key which you can enter, shows the boot screen win 8 logo but then goes to a blank screen. Tried an external display no luck.

 

So I assume a start up issue, go into windows 8 recovery mode, start up repair, and I am then asked for the recovery key. Only problem is I can't enter it, it only allows me to enter numbers, no letters.

 

I have tried everything, different keyboards, different keyboard layouts, no luck.

 

Any ideas?

 

thanks.

 

I did think perhaps I can throw it out of the window and see if windows enters recovery mode?

[Alkaline]

I was just being thick it was asking for the recovery key, not the start up key.