BI Crashes on Startup

I've never had an issue with BI, until today.

I was attempting to convert/export a video to an AVI file. In doing so, BI crashed. When I attempt to restart BI, it crashes. I rebooted the PC (Win 7, plenty of HD space and RAM), it continues to crash on startup.

I've searched the forum, can't find a resolution so looking here for help, maybe how to reinstall??

The BI version is 4.8.

Any help or ideas greatly appreciated.

Shawn

Problem signature:
Problem Event Name: APPCRASH
Application Name: BlueIris.exe
Application Version: 4.8.4.8
Application Timestamp: 5c50657d
Fault Module Name: MSVCR120.dll
Fault Module Version: 12.0.21005.1
Fault Module Timestamp: 524f83ff
Exception Code: c0000005
Exception Offset: 000000000003c630
OS Version: 6.1.7601.2.1.0.768.3
Locale ID: 1033
Additional Information 1: 81ce
Additional Information 2: 81ce99c87ba977469238e699fd0d6c6d
Additional Information 3: 5894
Additional Information 4: 5894a85d3acc936f0aac07d85066cfbf

Well after spending five fruitless hours trying to solve the specific problem to no avail (the dll MSVCR120.dll), I thru in the towel and did a complete re-install. But before doing so I made sure I had backups of everything before completely uninstalling BI4 and then reinstalling (of course key and activation code needed). Upon reinstall none of my cameras appeared, but at least it didn't crash. Instead, the new BI4 found old registry entries for cameras no longer in existence. Thankfully, the skilled programmers at BI have the "import settings" function on the "About" menu which fully restored my cameras and the multitude of settings which would have otherwise taken me days to recreate.

I guess after so many years of faithful service it was my time for a crash; pretty sure I won't try the export/convert function again.

Where's my beer...............