I recently purchased an HP 15-ay039wm Silver Fusion Laptop, Windows 10 for my significant other. It worked perfectly, until he plugged an old phone of his into the laptop. After doing that, he believes the phone gave the laptop a virus. When he turns the laptop on, everything is normal, it loads the home screen with the lock. After he puts in his password, it tries to start up. But after a few minutes, the screen goes black. So we unplugged the laptop, took out the battery and held the power button for between 30 seconds and 2 minutes. we put the battery back in and started it up. It didn't black screen but the the start menu wouldn't load, and it just black screened agan. Please help, I don't want this laptop to go to waste.