Window 7 computers automatically starting the W10 update without permission

Exactly. If Coca-Cola decides to put soap into their drinks, just drink your soapwater and accept the change. Soapwater makes you sick? Stop whining, soap is good for cleanliness.

 

Not really, based on the tests I read it runs faster in some applications and slower in others - altogether about the same.

 

If you've suffered this Win10 intrusion, how hard is it to go back to Win7...or has it completely overwritten everything(making this impossible).

 

http://www.howtogeek.com/220723/how-to-uninstall-windows-10-and-downgrade-to-windows-7-or-8.1/

 

This is why I manually update Windows. I just excluded this update from the list and no problems.