I recently upgraded my mom's Toshiba Satellite Laptop to Window 10 and have had nothing but problems. Upon startup, it takes forever to log in and half the time, she has to reboot and try again. In addition, I had set up a separate administrator account so that she didn't inadvertently get some malware from the web, but the admin account now can't go online (but her user account can). She isn't very computer security conscious and has a tendency to click on everything she sees.
I really have no idea where to start to take stock of what's wrong with the machine and then how to fix it. I'd appreciate any help people can give