Bootcamp: Keyboard and Mouse not detected

[IArI]

Dear fellow Mac lovers,

I am trying to get Windows 7 to work on my new Retina iMac. I used WinClone Pro to copy the Windows partition from my old MacBook to my new iMac. Everything seems to work fine, the installation guide opens (had to run sysprep before using Winclone) but I can't click on continue. Neither my Keyboard nor my Mouse is working.

I tried using a common USB mouse in every USB I have, even though a USB2 Hub, but sadly it won't recognise it at all. I can't just start the installation again with Boot Camp and the drivers since I have my data in this windows image and its not a clean install...

Does anyone have any idea how to make this work somehow?

Thanks!

 

[frompast]

I just finish my struggle here.
Because the GPT "GUID Partition Table"things.

GPT Yosemite was occupied.

You need GPT WIN 8 for easy installation,
much more straightforward.

 

[IArI]

I just finish my struggle here.
Because the GPT "GUID Partition Table"things.

GPT Yosemite was occupied.

You need GPT WIN 8 for easy installation,
much more straightforward.

I don't really get your answer to be honest..? As I said, I don't want to make a clean install since I have all my files in the BootCamp drive...