I have a DELL with windows 7, and I got it about 2 years ago. It's been fine and everything running smoothly until my hard drive crashed a few months ago. It was saved and I got a new hard drive and it was fine. But it seems like now whenever I play Minecraft, everything is so laggy and slow and it wasn't like that before. I've changed all my graphics to lowest possible on Minecraft and that did help on regular Minecraft play. But when I get on Pixelmon, everything is just so slow and laggy still and either the Minecraft itself will crash or my screen will suddenly go black and then come back on with a message saying something like "Your video graphics driver has crashed but has recovered itself." and it's NEVER done that before. I don't know if I can change some options on my laptop to stop this and make my games run smoothly again or if I need a video card or what?
Laptop Graphics keeps crashing?
You should call Dell Support and have them check out your laptop. It seems like you have some other problems besides your hard drive.
Obviously, Dell will first suggest to reinstall your drivers, reinstall your operating system etc. I'm just assuming you've already done this basic troubleshooting.
There are several possibilities for these problems (and their causes), that's why I say you should call support. Your graphics card may be broken, you may have driver issues or any other issue with your OS or even problems with your mainboard, psu etc. If everything was working properly, there would be no reason to turn your graphics down in a game.
It's impossible to say what exactly the problem is with the information you give here or without doing some proper troubleshooting.