The following behavior has been demonstrated to be 100% reproducible on both my desktop computer and my laptop computer.
Steps
1) Open the two attached files
2) Move one to the other view
3) Select Compare
4) Wait
Expected behavior
Files are compared
Actual behavior
Blue screen
Here is the blue screen report:
On Wed 6/22/2016 9:57:09 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\062216-114411-01.dmp
This was probably caused by the following module: win32k.sys (0xFFFFF96000166F83)
Bugcheck code: 0x50 (0xFFFFF880EE395000, 0x1, 0xFFFFF96000166F83, 0x0)
Error: PAGE_FAULT_IN_NONPAGED_AREA
file path: C:\Windows\system32\win32k.sys
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: Multi-User Win32 Driver
Bug check description: This indicates that invalid system memory has been referenced.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system that cannot be identified at this time.
Desktop system summary:
Notepad++ v6.9.2
Compare v1.5.6
Microsoft Windows 7 Home Premium 64-bit
Version 6.1.7601 Service Pack 1 Build 7601
System Memory - 16 GB
CPU Type - Intel(R) Core(TM) i5-4440S CPU @ 2.80GHz
System Manufacturer ASUS
Graphics Chipset - AMD Radeon (TM) R9 200 Series
Radeon Software Version - 16.3.2
Note that this blue screen does not occur in Safe Mode on my desktop comptuer.