Constant Freezing/weird Stuff With Computer?

A couple months after I got my computer, it began to become very slow. Being an impatient person, I hard rebooted a couple times. Eventually it went into The black screen where it says "checking disk for consistency". Being an impatient person,y dad and I chose to just re install my whole computer. And then it was fine.Until a month later when it began having the same issues. This time, I hard rebooted a couple times until it went into "Checling disk" again. After googling, I let it run through and it took a couple of hours but it worked. And them it was fine, until a week later t became extremely slow, shut down, and went into Startup Repair. It began fixing hard drive errors and took several hours to complete, but it did. And it was fineA week later my computer again has begun freezing up. When I start it up in the mornings, it takes a long time on "Starting Windows" and then goes to a black screen with a cursor. Then waits for a long time before going into he login screen, I login and it takes a long time to begin to function. Then it starts to freeze up, I hard rebooted, and it happens again.

Oh, and whenever I get the rare moment my computer is functioning I run Norton full scans/ CCcleaner. Computer info:Model: Gateway NV55CIntel Core i3-370MHard Drive: 320 GB HDDMemory: 4GB DDR3 MemoryUpdAte:Rebooted computer, went into startup repair. Let it run and sent to starting windows and beeped around 8 times. Now it's stuck, and I'm sad