Hi I have bought a 250gb ssd for my inspiron 17r 7720 and was unable to use dell backup and recovery since the ssd is smaller than the original 1tb hdd. Therefore I have done some research and found that i need to get the iso for a fresh windows 8 install. I am running dell windows 8 core and am in the UK/GB but unsure what iso to use. I have tried an iso from another thread but an error came up saying something like ''the product key entered does not match any of the windows image available for installation'' from thread called ''Thread: Windows 8 Core SingleLanguage OEM original'' but i think that version was a US one (pg11) i have also tried changing the version and language using the tutorial on ''Why no image file of Win 8 OEM DVD?'' pg3 but on install it asked me for my windows 8 key... but i thoight it would retrieve it from the bios and i dont actually know my key could i just download any windows 8 iso that isnt cracked and just install that? and that would use the bios key? help needed!!! so annoying after buying a new ssd and cannot use it!!