Windows 7: BSOD While Browsing the Web - Memory Management

Hello, my computer has been receiving random BSODs throughout the day, especially when I am browsing the web. The message is usually "memory management." This computer is around 3 months old. The first 1 1/2 month, it did not experience this problem. However, from July and onwards, my computer would get BSOD; it would occur at least once a day.

According to BlueScreenView, the driver that is causing BSOD is "ntoskrnl.exe."

I've attached the dump files.

Just experienced another BSOD. This time its BAD_POOL_HEADER. This happened when I was running a fullscan with Malwarebytes. I attached the updated dump file (the new file is 081912).

Any help is appreciated. Thanks.