I think Jerry has identified the probable cause. I wonder if it was even Google Drive and not Windows that restricted access. It sounds very much like the step you often have to go through when Windows requires an Administrator to authorize that changes can be made to a folder.
There was also a network involved. The other consideration is if RootsMagic 7 had permission to access the internet. RootsMagic 6 may have had permission but not RootsMagic 7.
So we will never have a good answer because we couldn't remotely view the computer to determine how things were setup and what was happening. I just want to remind people that when you purchase RootsMagic you receive free support. You can call us to remotely view your computer so we can quickly determine your issue when problem like these arise. We can't always fix your Windows issues outside of our realm or expertise, but we can help rule out what might be causing things to happen.