[Windows Central Question]

i have original windows 8.1 installed on my dell inspiron 15 3000 series ..... i don't have the product key it is not written anywhere .... i am upgrading to windows 10 from 8.1 as it don't ask about product key if your windows is genuine ..... but i want to install clean widnows 10 from iso that are now available but i have read that will ask about product key .... i don't have that then how will i activate that clean windows 10 ? if i skip product key then after that inside windows 10 again same product key issue ?

so i only left with this upgrade and stick with it option :( ? help

[Pete]

Try this tool to get your product key.

ProduKey - Recover lost product key (CD-Key) of Windows/MS-Office/SQL Server