I need help with my laptop it's under three years old and takes like five minutes to load up. And like now it's said operating system not found so turn off wait turn on then has to run in safe mode. It's going to get thrown out the door soon lol when I get it started what could I look for to fix this. It has security on it and it's a hp thanks for any input I'm using my phone as it's just a black screen at the moment.