Hello all,
Thanks for your replies and advice but unfortunately my Windows 7 Pro 64 bit does not show the Aero because that version 6.1 has it not according to the Windows help file.
I saw the video of Tom's Hardware and the Aero window under "my themes" is inexistent.
Any additional advise apart from changing the Windows version are more than welcome.
Not sure I intend to upgrade, if that is possible, since all video editors, etc. work perfectly well on this very stable Windows 7 Pro 64 bit desktop version. What I can do is download to the Windows 8.1 laptop and use it there.
Collector ;~(