After I loaded a flight in FSX for about 5 to 10 seconds, it crashes and restarts. I tried to find a solution to this error in some forums including here and heard something called the Windows Event Viewer, and I found the problem which caused FSX to crash and restart is from FSUIPC4.dll.
Here is the faulting module:
Faulting application name: fsx.exe, version: 10.0.61637.0, time stamp: 0x46fadb14
Faulting module name: FSUIPC4.dll, version: 188.8.131.52, time stamp: 0x6001e32f
Exception code: 0xc00000fd
Fault offset: 0x000ded47
Faulting process id: 0x421c
Faulting application start time: 0x01d7860ce8558de7
Faulting application path: C:\Program Files (x86)\Microsoft Games\Microsoft Flight Simulator X\fsx.exe
Faulting module path: C:\Program Files (x86)\Microsoft Games\Microsoft Flight Simulator X\Modules\FSUIPC4.dll
Report Id: e4e67aea-8d3b-4d50-b22e-8e6daf716b64
Faulting package full name:
Faulting package-relative application ID:
And here's the log file that I attached here in case you need them.