BSOD of few random error, Memory Management.

Blue Screen of Death (BSOD) Posting Instructions
that we need to form any idea.

Code:

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Use !analyze -v to get detailed debugging information.

BugCheck 1E, {ffffffffc0000005, fffff800031b59bc, 0, ffffffffffffffff}

Probably caused by : Pool_Corruption ( nt!ExDeferredFreePool+100 )

Followup: Pool_corruption
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Your crash dumps are not showing any finite probable cause. In such a situation, it is better to enable Driver Verifier to monitor the drivers.
Driver Verifier - Enable and Disable
Run Driver Verifier for 24 hours or the occurrence of the next crash, whichever is earlier.

   Information

Why Driver Verifier:
It puts a stress on the drivers, ans so it makes the unstable drivers crash. Hopefully the driver that crashes is recorded in the memory dump.

How Can we know that DV is enabled:
It will make the system bit of slow, laggy.

   Warning

Before enabling DV, make it sure that you have earlier System restore points made in your computer. You can check it easily by using CCleaner looking at Tools > System Restore.

If there is no points, make a System Restore Point manually before enabling DV.

   Tip

• If you fail to get on the Desktop because of DV, Boot into Advanced Boot Options > Safe mode. Disable DV there. Now boot normally again, and try following the instruction of enabling DV again.
• If you cannot boot in Safe mode too, do a System Restore to a point you made earlier.

Let us know the results, with the subsequent crash dumps, if any.

Cannot nullify it, but the chance it not very high. PoolCorruption is caused due to a driver, and I am guessing something HDD monitoring driver is causing it. Even it may be your antivirus, MSE.

As a side test, uninstall MSE totally. Then get a fresh downloaded copy from Microsoft Security Essentials - Microsoft Windows and install it.

I guess Driver verifier may point out something.

Let us see what our troubleshooting results.

OK, if you want, you may go for a memtest following the instructions of this post :)