Windows can be installed on systems whose processors are 32-bit or 64-bit processors, it came to the public on 22nd October 2009 and revolutionized the operating systems, the OS is widely available in three retail windows 7 pro key editions: Windows 7 Home Premium, Professional and Ultimate. Many may think using these duplicate product keys may cause a problem for the operating system, but these are the keys provided by Microsoft for one system or two. In general, we use it for many. So, to make Microsoft not know about it we turn off updates. Before using the product keys of the Windows updates, if the windows update is on then Microsoft can recognize the duplicate product key.