Switch Hardware Problem: My Joy-Con disconnects from the Switch A common issue at launch was with Joy-Con controllers--specifically left ones--frequently dropping connection to the console.

If the computer never responds to the power button or always restarts when the power button is held down, the button may be defective. Replacing a power switch for a desktop is relatively simple.

What to do if my Nintendo Switch won't turn on: Possible problems, solutions and steps to follow You can follow these steps if you have this problem ...

Power Options settings change or reset on their own? Power Saving Switch is changed? If Windows keeps changing power plan & reseting it at boot, see this fix.