BSOD playing Minecraft and general web browsing

Please read and follow the instructions here: Blue Screen of Death (BSOD) Posting Instructions .

Download and run the v2-Beta17 log collector and upload the resulting zip file please. It collects additional info that may be of use in debugging your problem.

Code:

BugCheck 4E, {2, 1ad894, 29f7ff, 1}
*** WARNING: Unable to verify timestamp for win32k.sys
*** ERROR: Module load completed but symbols could not be loaded for win32k.sys
Probably caused by : memory_corruption ( nt!MiUnlinkPageFromList+145a11 )

You have an odd memory configuration with dissimilar DIMMs. Try removing the 2GB DIMM and see if that makes any difference:

Code:

[Memory Device (Type 17) - Length 34 - Handle 0028h]
  Physical Memory Array Handle  0007h
  Memory Error Info Handle      002ch
  Total Width                   64 bits
  Data Width                    64 bits
  Size                          2048MB
  Form Factor                   0dh - SODIMM
  Device Set                    [None]
  Device Locator                ChannelA-DIMM0
  Bank Locator                  BANK 0
  Memory Type                   18h - Specification Reserved
  Type Detail                   0080h - Synchronous
  Speed                         1333MHz
  Manufacturer                  0443
  Serial Number                         
  Asset Tag Number
  [32Bit Memory Error Information (Type 18) - Length 23 - Handle 0029h]

[Memory Device (Type 17) - Length 34 - Handle 002bh]
  Physical Memory Array Handle  0007h
  Memory Error Info Handle      [No Errors]
  Total Width                   64 bits
  Data Width                    64 bits
  Size                          4096MB
  Form Factor                   0dh - SODIMM
  Device Set                    [None]
  Device Locator                ChannelA-DIMM1
  Bank Locator                  BANK 1
  Memory Type                   18h - Specification Reserved
  Type Detail                   0080h - Synchronous
  Speed                         1333MHz
  Manufacturer                  Hynix/Hyundai
  Serial Number                         
  Asset Tag Number                        
  Part Number                   HMT351S6BFR8C-H9  
[32Bit Memory Error Information (Type 18) - Length 23 - Handle 002ch]

[Memory Device (Type 17) - Length 34 - Handle 0030h]
  Physical Memory Array Handle  0007h
  Memory Error Info Handle      [No Errors]
  Total Width                   64 bits
  Data Width                    64 bits
  Size                          4096MB
  Form Factor                   0dh - SODIMM
  Device Set                    [None]
  Device Locator                ChannelB-DIMM1
  Bank Locator                  BANK 3
  Memory Type                   18h - Specification Reserved
  Type Detail                   0080h - Synchronous
  Speed                         1333MHz
  Manufacturer                  Hynix/Hyundai
  Serial Number                         
  Asset Tag Number                        
  Part Number                   HMT351S6BFR8C-H9
  [32Bit Memory Error Information (Type 18) - Length 23 - Handle 002fh]

This error can also be caused by a driver passing a bad memory descriptor list. For example, the driver might have called MmUnlockPages twice with the same list. I see you have the latest Nvidia driver for your 750M GPU.

Get the latest driver (again) for your Nvidia card here: NVIDIA Driver Downloads
Completely uninstalling the Nvidia display drivers using Display Driver Uninstaller (DDU) from WagnardMobile here: Official Download Here. Do this in Safe Mode.

Then do a custom install of only the NVidia graphics driver and the PhysX driver. See if that gets rid of the problem.