Image via CrunchBase
Ok guys I0’m back on track and start writeing again.
I just started to play with windows 8 and i have some impressions, but first of all i wanna give you a simple advise: write your product key somewhere before installing it, because changing product key on windows 8 can be frustrating.
We do not have a direct link to a change Key tool, not help would be of some use, since the instructions does not lead you anywhere.
The best thing to do is quick search internet, but again there are more articles than solutions. Well the good news is that it can be solved 
so what do you have to do?
Open the command prompt with administrative privileges
write this simle command (a vbs script)
Microsoft Windows [Versione 6.2.9200] (c) 2012 Microsoft Corporation. Tutti i diritti riservati.
C:Windowssystem32>slmgr.vbs /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX C:Windowssystem32>
there are some similar indications on the web but I found most do not remind you to use administrative provoleges
Rremember even if you are your pc admin on windows 8 you do not run application with administrative provileges by default so you have to explicitally declare it
And some does not indicate the /ipk parameter, well it is not a problem the help comes out to support you
