The blue sceen error suddenly came up again when PC was running fine. I analyzed using "WhoCrashed" program and the results are below. Not very specific as to what the problem is.
On Sun 1/5/2014 6:54:44 PM GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini010514-02.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0xB47D)
Bugcheck code: 0x1000000A (0x94B5B, 0x1C, 0x1, 0xFFFFFFFF804E247D)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: N