I'm having some new problems, a strange stutter and strange fps drops. I have tried everything to troubleshoot this. Rather than reinstall, I do have a copy of my FSX folder before the problems occured. I want to copy it across, see if it solves my problems. 

 

But. Will replacing the FSX folder tree cause problems... will FSX complain? 

 

Should I back up and then delete my fsx.cfg and scenery.cfg first so it is compatible.

 

In short - will it work???? !! 

I assume that you're going to reinstall Windows and then reinstall FSX.

 

If so, get your current FSX folder to safety on another drive (don't forget the folders with the scenery.cfg and fsx.cfg), then wipe your Windows installation, install Windows, install FSX from disk, activate it, install the service packs, start FSX at least once to create the config files, then move the freshly installed FSX folder to another drive (because it always pays off to have vanilla FSX files at your disposition) and move your old, custom FSX folder to the location where the freshly installed one used to be. Finally move the config files from your old, custom installation back into their place and everything should be there.

 

Note: Some payware stuff might have to be reinstalled.

No, I don't want to reinstall FSX or Windows!

Why not set FSX to defaults. Rename the scenery.cfg, dll.xml, and exe.xml for a starting point.

Ha, is there an option for that. Will investigate. I'd still like to copy across all my good data though - it would save my a couple of weeks of work reinstalling FSX and the add ons. 

Renaming those files then starting the sim will create them so you can test it as it is, more or less, out of the box. After that you can put them back. I'm assuming you got a copy of FSX program folder? You should be OK if you rename the current active folder then name the backup as that, saves copying.

That would probably work. I'd say it's worth a try.