Run cmd at startup
The startup folder is still there and functions as normal. To access it, press Windows+R, then type shell:startup. You should be able to do what you were previously doing in Windows 7 from there.
Windows 10
The startup folder is still there and functions as normal. To access it, press Windows+R, then type shell:startup. You should be able to do what you were previously doing in Windows 7 from there.