If that little icon at the lower right is bothering you, visit this link and it will remove the icon.http://www.cnet.com/how-to/hide-or-disable-the-windows-10-system-tray-icon/ It is nothing more than a Windows update and you can remove the update and get rid of the icon. Just don't allow that update again.
I have no intention of doing the the free upgrade so I'll just wait until it's necessary as my Win7 system is working fine.
In case it helps others decide....I did the 'Permanent Fix' from the link that was was suggested above by going to control panel and right click/uninstall the
Update for Microsoft Windows KB3035583.After the necessary reboot the computer did go through the (3) stage
check disc process but all went fine and the icon in the systray is gone.
Carry on....