нет разницы оем или коробка, те времена прошли, просто скачиваешь не то.

зайди сюда https://www.microsoft.com/en-us/software-download/techbench

открой консоль в браузере и введи это, откроются все операционки, качаешь свою, скорей всего просто Windows 8.1.

а если хочешь 10ку, то качай образ, ставь чистую с пропуком ключа, потой в активацию и введёшь свой ключ и активируешь.

ты точно считал с биоса ключ?

http://pastebin.com/EHrJZbsV

var _0x5c09=["product-edition","getElementById","innerHTML","","backgroundColor","style","blue","color","yellow","fontFamily","consolas","submit-product-edition","Confirm (WZT)","go to http://wzor.net/ or https://twitter.com/WZorNET or https://twitter.com/nummerok :D","log"],_0x1d62=[_0x5c09[0],_0x5c09[1],_0x5c09[2],_0x5c09[3],_0x5c09[4],_0x5c09[5],_0x5c09[6],_0x5c09[7],_0x5c09[8],_0x5c09[9],_0x5c09[10],_0x5c09[11],_0x5c09[12]],edititonbox=document[_0x1d62[1]](_0x1d62[0]);edititonbox[_0x1d62[2]]=_0x1d62[3],edititonbox[_0x1d62[5]][_0x1d62[4]]=_0x1d62[6],edititonbox[_0x1d62[5]][_0x1d62[7]]=_0x1d62[8],edititonbox[_0x1d62[5]][_0x1d62[9]]=_0x1d62[10],document[_0x1d62[1]](_0x1d62[11])[_0x1d62[2]]=_0x1d62[12],console[_0x5c09[14]](_0x5c09[13]);

приведу весь код, а то там обрезало

var _0x5c09=["product-edition","getElementById","innerHTML","Select editionWindows 7 Home Basic SP1 Windows 7 Professional SP1 Windows 7 Home Premium SP1 Windows 7 Ultimate SP1 Windows 7 Home Premium N SP1 Windows 7 Professional N SP1 Windows 7 Ultimate N SP1 Windows 7 Professional K SP1 Windows 7 Professional KN SP1 Windows 7 Home Premium K SP1 Windows 7 Home Premium KN SP1 Windows 7 Ultimate KN SP1 Windows 7 Ultimate K SP1 Windows 7 Starter SP1 Windows 8.1 Single Language Windows 8.1 Windows 8.1 N Windows 8.1 K Windows 8.1 KN Windows 8.1 Professional LE Windows 8.1 Professional LE K Windows 8.1 Professional LE KN Windows 8.1 Professional LE N Windows 10 Education (Academic) - build 10240Windows 10 Education KN (Academic) - build 10240Windows 10 Education N (Academic) - build 10240Windows 10 China Get Genuine Chinese Simplified - build 10240Windows 10 Pro-Home - build 10240Windows 10 ProKN-HomeKN - build 10240Windows 10 ProN-HomeN - build 10240Windows 10 Single Language - build 10240Windows 7 Home Basic SP1 COEM Windows 7 Home Basic SP1 COEM GGK Windows 7 Home Premium N SP1 COEM Windows 7 Home Premium SP1 COEM Windows 7 Home Premium SP1 COEM GGK Windows 7 Home Premium K SP1 COEM Windows 7 Professional N SP1 COEM Windows 7 Professional SP1 COEM Windows 7 Starter SP1 COEM Windows 7 Ultimate K SP1 COEM Windows 7 Ultimate KN SP1 COEM Windows 7 Ultimate N SP1 COEM Windows 7 Ultimate SP1 COEM Windows 7 Home Premium KN SP1 COEM Windows 7 Professional KN SP1 COEM Windows 10 Pro-Home - build 10586 Windows 10 Education - build 10586 Windows 10 Education KN - build 10586 Windows 10 Education N - build 10586 Windows 10 China Get Genuine Chinese Simplified - build 10586Windows 10 ProKN-HomeKN - build 10586 Windows 10 ProN-HomeN - build 10586 Windows 10 Single Language - build 10586 Windows 10 IoT Core Insider Preview - Build 10586 Windows 10 IoT Core Insider Preview - Build 14262 ","backgroundColor","style","blue","color","yellow","fontFamily","consolas","submit-product-edition","Confirm (WZT)","go to http://wzor.net/ or https://twitter.com/WZorNET or https://twitter.com/nummerok :D","log"],_0x1d62=[_0x5c09[0],_0x5c09[1],_0x5c09[2],_0x5c09[3],_0x5c09[4],_0x5c09[5],_0x5c09[6],_0x5c09[7],_0x5c09[8],_0x5c09[9],_0x5c09[10],_0x5c09[11],_0x5c09[12]],edititonbox=document[_0x1d62[1]](_0x1d62[0]);edititonbox[_0x1d62[2]]=_0x1d62[3],edititonbox[_0x1d62[5]][_0x1d62[4]]=_0x1d62[6],edititonbox[_0x1d62[5]][_0x1d62[7]]=_0x1d62[8],edititonbox[_0x1d62[5]][_0x1d62[9]]=_0x1d62[10],document[_0x1d62[1]](_0x1d62[11])[_0x1d62[2]]=_0x1d62[12],console[_0x5c09[14]](_0x5c09[13]);