Unity 4.3.2 crashed on startup

When I first downloaded unity, it worked like a charm for a few weeks, until it crashed when it started up. I ignored it the first time since I was busy and had to do other things, but the next day, the same thing happened, and again, and again. I couldn’t find an answer for MY specific problem. Here are the details.

Problem signature:
Problem Event Name: APPCRASH
Application Name: Unity.exe
Application Version:
Application Timestamp: 52a8de6d
Fault Module Name: ntdll.dll
Fault Module Version: 6.3.9600.16408
Fault Module Timestamp: 523d45fa
Exception Code: c0000005
Exception Offset: 0003ea02
OS Version: 6.3.9600.
Locale ID: 1033
Additional Information 1: 2d69
Additional Information 2: 2d690e16ddb5144cdc1ec02fcf8c2ddc
Additional Information 3: 042b
Additional Information 4: 042bf53e703c9279995c1e4e54bb886f

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Figured it out, I just needed to right click, run with graphics processor, high performance NVIDIA processor.

Not everyone has several grapuics processor. The problem is caused by materials, something has crashed there. If you have backup copy made before the crash had appeared, you can restore your materials from there.
By the way, I’ve got this error after saving the scene during the compilation.