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First thing you need to do is to open your windows explorer by pressing Windows + E keys. If you don't want your other users to have the same startup item, refer to this guide. In the windows explorer, navigate to the hidden system folder: C:\Users\(User-Name)\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup. You can also press Windows + R to open Run and then type in shell:Startup and hit OK. Now you're in the Startup folder. In the folder, you can either add or delete shortcuts for whatever items you'd like in the Startup folder. The program shortcuts you add in will automatically start whenever you open your computer. If you remove programs from the startup folder, they're considered as disabled. You can add as many shortcuts as you want, but keep in mind that adding a lot of startup programs may or may not cause heavy processing that will lead to slow startup loading.
Open Windows Explorer. Add or Delete Startup Items for a Specific User.