Here is the WhoCrashed Log:
Crash Dump Analysis
Crash dump directory: C:\Windows\Minidump
Crash dumps are enabled on your computer.
On Sun 2/16/2014 7:52:33 AM GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: ntkrnlmp.exe (nt!KeBugCheckEx+0x0)
Bugcheck code: 0x4E (0x99, 0x9BC54, 0x0, 0x957D4)
Error: PFN_LIST_CORRUPT
Bug check description: This indicates that the page frame number (PFN) list is corrupted.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This might be a case of memory corruption. More often memory corruption happens because of software errors in buggy drivers, not because of faulty RAM modules.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Tue 1/28/2014 11:53:30 PM GMT your computer crashed
crash dump file: C:\Windows\Minidump\012814-22588-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x75BC0)
Bugcheck code: 0x7F (0x8, 0x80050031, 0x6F8, 0xFFFFF80002E86B80)
Error: UNEXPECTED_KERNEL_MODE_TRAP
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This bug check indicates that the Intel CPU generated a trap and the kernel failed to catch this trap.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Thu 1/2/2014 1:19:14 PM GMT your computer crashed
crash dump file: C:\Windows\Minidump\010214-21387-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x75BC0)
Bugcheck code: 0x4E (0x99, 0x3FFC4, 0x0, 0x49904)
Error: PFN_LIST_CORRUPT
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that the page frame number (PFN) list is corrupted.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This might be a case of memory corruption. More often memory corruption happens because of software errors in buggy drivers, not because of faulty RAM modules.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Sun 10/27/2013 7:38:55 PM GMT your computer crashed
crash dump file: C:\Windows\Minidump\102713-19484-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x75BC0)
Bugcheck code: 0x7F (0x8, 0x80050031, 0x6F8, 0xFFFFF80002ED7CE9)
Error: UNEXPECTED_KERNEL_MODE_TRAP
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This bug check indicates that the Intel CPU generated a trap and the kernel failed to catch this trap.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Wed 10/2/2013 9:48:22 PM GMT your computer crashed
crash dump file: C:\Windows\Minidump\100213-46051-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x75B50)
Bugcheck code: 0x6B (0x0, 0x0, 0x0, 0x0)
Error: PROCESS1_INITIALIZATION_FAILED
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This bug check indicates that the initialization of the Microsoft Windows operating system failed.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
Conclusion
6 crash dumps have been found and analyzed. No offending third party drivers have been found. Consider using WhoCrashed Professional which offers more detailed analysis using symbol resolution. Also configuring your system to produce a full memory dump may help you.