Hi Jack
Thanks your help.
Please check below information. We have 4 servers have same problem.
OS: Windows Server 2008 R2 Standard(x64) +SP1
Description:
Stopped working
Problem signature:
Problem Event Name: CLR20r3
Problem Signature 01: vmwareosoptimizationtool.exe
Problem Signature 02: 1.0.3.6
Problem Signature 03: 541fba73
Problem Signature 04: VMwareOSOptimizationTool
Problem Signature 05: 1.0.3.6
Problem Signature 06: 541fba73
Problem Signature 07: 273
Problem Signature 08: 13
Problem Signature 09: System.IO.FileNotFoundException
OS Version: 6.1.7601.2.1.0.272.7
Locale ID: 1033