Can someone please help me. I downloaded Win 8.1 32 bit English from the link on abbodi1406 thread. I created the DVD without any problems and WIN 8.1 installed over my WIN7 ultimate without any problems. I used the key mentioned during installation and Microsoft said the key was OK. Key starts Y9 and ends TC I am trying to activate using the MICROSOFT Toolkit 2.5.1 and when I try to activate it says Blank or invalid confirmation ID. I did try with the Autokms first but realise this might be wrong, so I uninstalled and installed KMS Server service. What I cannot find out is what version of 8.1 I really have and can I use the Microsoft Toolkit. I would be very grateful for simple answers - 1 ) What version of Win 8.1 is this - or how do I find out - System say Windows 8.1 Single Language but nothing about Pro etc. 2) What tool should I use to activate and what Tool within the Toolkit ie. AutoKMs or KMS server service I have read a lot of the Win8 forum, but some of it is getting very difficult to follow. The actual installation went very smoothly and everything seems to be working fine. I have used the DAZ loader on WIN& without any problems so cannot be 100% stupid. Simple answers please. Thank you.