It would be easier for me to re-install windows for meh then do this things
I tried to list exactly what I did but a short version that is probably the same might be
1) Create a non admin user
2) Log out then log into the non admin
3) Log out of the non admin and back into the regular account
4) Look at start button.
You're right though, it's not likely anyone would take those steps.
The end. I hope.
Well yeah even if you found out that you are hacked you still need to re-install