Some one from support suggested to rename file ToadActions.dat and after doing this, I closed laptop while leaving office and when logged to laptop it gave message ad do you want to connect and then it is not crashed only 2-3 times. I.e. 3rd time onwards again same problem of crahsing, rarely once in 1 week it is asking do you want to connect (I haven't check check box for automatic connection). I am trying to raise request for SQL developer instead of following this stupid software. The following is the error message.
Problem signature:
Problem Event Name: APPCRASH
Application Name: Toad.exe
Application Version: 12.7.1.11
Application Timestamp: 55c8c6e3
Fault Module Name: ntdll.dll
Fault Module Version: 6.1.7601.19045
Fault Module Timestamp: 56259295
Exception Code: c0000005
Exception Offset: 0000000000027f25
OS Version: 6.1.7601.2.1.0.256.4
Locale ID: 1033
Regards
Sudarshan Reddy