System with Windows 7 installed, Windows 10 disc came with it, and compatible programs and O/S files.
The pc owner bought a Dell from Amazon. It came with no Windows 7 disc but had 7 installed on the system. They got a Windows 10 disc.
I do not have a photo of the disc and could not likely get a photo for a week.
I think this was built as a Windows 10 system and there was public demand for a Windows 7 system with the same specs like i5, etc.
If and when he decides to switch to Windows 10 and he uses the disc that came with the system do the Windows 10 files replace all those from Windows 7 or do the two O/S's share certain files?
He is concerned to lose programs like Any Video Converter, etc. as well as all his documents and videos.
I know he won't lose any documents.
What about programs? I can guess that some of the free programs he wants to use may be not compatible with Windows 10.
There are two scenarios. He has a Windows 10 disc to finish or enable 10 over the Windows 7 installed installed system. (and I think the pc was built with Windows 10 installed ??)
And all his desired programs are on the pc already. What about loss of programs?
The other scenario is like my situation where I have a Windows 7 system built before Windows 10 was born, I think.
I'll have a Windows 10 disc with product key whereas he does not. His disc does not have a key.