i tried to do a factory reset on my gateway lt4010u laptop but now everytime it goes to a screen that reads setup is starting


The built in factory image inside the HDD might had been damaged or corrupted already so your last option is to create a Factory Reset disc or order from Gateway so your can reinstall Windows in your laptop.

Here's how you can create your own factory reset disc:

Here's also a complete guide to use the factory reset disc: