I too have this little icon. Yes I think I will try. Here's my back door:
I'm on the threshold to installing an SSD. When I'm ready, the accompanying software will copy my C: drive to the new SSD so that the SSD can replace the C: drive. I will then install Win 10 on the old drive and see how it behaves. If it is good, I could run the same software again to convert that SSD from 7 to 10. (I also think about cloning the C: drive onto a hard drive that could replace the internal one could be an option if that is the only way back.)

It has been said that drivers might be a problem. Other software might have a problem too.

I will see.

Last edited by GHinCH; 06/02/15 04:03 AM.
Desktop; i7-2600k, 8 GB mem., Win 10 Pro, BIAB 2017; RB 2017 - latest build
Laptop: i5-2410M, 4 GB mem, Win 10 Pro, BIAB 2017; RB 2017 - latest build