Overclocking is unsupportable. I'd set it back to stock but https://www.google.com/search?q=POOL_CORRUPTION_IN_FILE_AREA&ie=utf-8&oe=utf-8 does clue us in it sounds like a memory issue. Try it with one stick of RAM and be sure the malware issue is not in play.
Bob
I've been running Windows 8.1 64-Bit on my i7 4770K desktop for about one year. Two months ago I upgraded the OS to 8.1 Pro. Key hardware components are Samsung EVA Pro 256 GB SSD ("C" drive), 16 GB DDR3 RAM and 4 x SATA 3.0 HD for data. Except for a few BSOD, mostly in OS module ntoskrnl.exe, and error: POOL_CORRUPTION_IN_FILE_AREA. This BSOD occurred on 3/19/15; a crash dump was created; and Windows rebooted normally. System behavior has gotten very strange after that BSOD: a) start->shut down or sign out -> shut down no longer shuts down system. Only the display turns off. Shut down requires holding the power off button until the event happens. I'm stumped and need advice on how to analyze what's happening and, ideally, how to fix it. Thanks for your assistance.

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