windows 8.1 - Computer Freezes Randomly Due to Hardware Problems

My computer has been randomly freezing for about a month. There seems to be no obvious patterns, it can run days or just hours. The problem seems to only occur in my Windows OS, when booted to Linux I have not observed this problem. No USBs are plugged in (usually) when the computer crashes. The computer is <1 year old and the battery is even newer (~6 months old). I know for certain the computer has frozen when using the battery, I believe it has also occurred while plugged in to an outlet (although I cannot remember).

Symptoms

• All lights that were on when the computer froze remain on (including CAPS and the HDD light)


• The screen will turn off when shutting the computer, but it will NOT go to sleep


• If any sound was playing, the sound repeats causing a horrible noice


• The computer has froze while running on battery power, probably when plugged in too, although I cannot remember for certain

Diagnostics

• I have run sfc /scannow and DISM.exe, the results can be seen on this post. No system files appear to be corrupt.


• I ran the Windows Memory Diagnostic Tool using the extended option (memtester64+ is not available for UEFI systems). No problems were detected.


• I used Prime95 to test the CPU using Small FFT's. It ran for ~25 hours when I manually stopped it without detecting any issues. Since running ~12 hours is a sign of a stable CPU, I figure the CPU is fine.


• I ran Window's chkdsk, no problems were detected.


• I checked the HDD's S.M.A.R.T. and no problems were reported.


• I verified the HDD using Linux, no problems were reported.


• I used a 3DMark to benchmark/test my GPU. The results were slightly below the average, but this was probably due to my system (power) settings. I am assuming the problem does not exist with the GPU (I believe it would have froze if the problem did exist here).


• Device manager is not reporting any problems.


• The problem does not appear to be overheating, the CPU rarely gets hot and there are 2 fans.

Related Specs

• Windows 8.1 dual booted with Ubuntu Linux (no problems appear to occur in Ubuntu)


• 12 GBs of RAM


• Intel Core i7-4700HQ (Quad-core)


• GeForce GTX 770M GPU


• 2 HDDs

When Does this Occur?

• Completely randomly. I neither play games nor videos on the computer. It has occurred regardless of whether I am streaming music or not.

I am not sure what/how to test anything else. If you need any additional information, please let me know. Any help and suggestions would be greatly appreciated.

Edit:

The Linux and Windows OSes are on separate HDDs.

Update

I ran memtest86 with 3 passes and all memory modules in the computer. The tests did not find anything.

I cannot seem to get Hiren's Boot CD to run on my system, even after disabling secure boot and setting SATA->IDE. I cannot find the legacy boot option in my BIOS, it may not be available.