My Toshiba Satellite that ran for close to two years on Win8 with no problems suddenly wouldn't function with it at all (even with repairs and several reinstalls), to the point that the company I had my warranty through paid me out for the laptop, so I tried installing the Win10 tech preview instead which worked fine for months. However, right after the latest update I let my mom use my laptop to check her email and suddenly my desktop icons don't show, my start menu and taskbar don't work, and none of my apps work.
I've tried editing the registry where recommended for when this is caused by a virus. I've used UnHide (which only temporarily brings back the desktop icons and nothing else). I've run scans with both MalwareBytes and Avast (including a boot scan). I attempted to do a system restore, but it doesn't seem to have done anything. I refreshed the computer, but it doesn't seem to have actually worked. I can get to the menu where I can tell my comp to boot in safe mode, but it won't let me actually enter any commands at that point.
At this point, I'm not even sure what is actually causing the problem. My mother is one of those people who is perfectly happy to click on everything that seems to good to be true, so I wouldn't doubt virus, but since this particular laptop had problems with another operating system, I know it could be the hardware rather than the software. And, with that latest update, I know it could also be that. (I did follow the option to uninstall the Tech Preview updates, but like the other troubleshooting things, it doesn't seem to have worked.)
Anyone have any ideas on what I can do here to fix this?