"Flight Simulator X has stopped working" problem

Remove your log file and then try to start it.
It will build a new one.
That should do the job.
If, and I say if it doesn't then delete the fsx.cfg file and restart, a new one will be built.
As long as it worked the day you first stopped the first should work.

The issue now is that FSX isn't installed at the moment, and it won't install for some reason. This surely couldn't be caused by a log file?

I'm assuming the log file belongs to the FSX folder?

I also tried the deleting of the fsx.cfg which didn't work unfortunately.

Thank you for the reply

I'm afraid you lost me.
In your first post you say it won't pass the splash screen.
Now you say it's not installed but you tried to delete the FSX.cfg file??????

Just uninstall it using Microsoft's way (it works for FSX too).

http://support.microsoft.com/kb/888846

If you follow each step carefully then your computer will be clean of the Sim and you can reinstall it.
The only other way would be to reinstall Windows and start over with a clean hard drive.
Good luck with whatever you decide.

Apologies, when it was installed it would not go past the splash screen, but then I tried to re-install it, so I uninstalled it then installed it again, but during the install it crashed so it did not complete.

I have considered reinstalling windows and that will probably be my new move.

Many thanks for the help

Let us know how you do and good luck again with whatever your choice.

It would appear I may have fluked it and fixed my issue.

While messing around desperately trying to make it start, I located fsx.exe, right-clicked it and ticked the option which said "run as administrator" then double clicked the fsx.exe. It successfully loaded.

I'm currently in the process of restarting it a few times every now and again to make sure the issue has gone, looks pretty promising so far.

Thanks again for your help.

Good to hear, thanks for the information.