Hi,Few days ago, on one of those nights I couldn't sleep, I mess up with my Windows (XP pro SP3).I uninstall FS9, deleted all folders, and reinstall it all again.For my surprise, when I was going to update FS9 to v9.1, the installer replied that I already have that version installed. For my grief, I understood that I should have uninstall it before deleted all folders from windows.Cant find any help from Microsoft how to manually uninstall the update.Can anyone please help me?The reason that I want to install the update, is that FS9 is all time crashing.Any help will be welcome.Best Regards,Hugo

I realize I am responding to a fairly old post but am wondering if you ever got your problem solved?A more recent thread has addressed this issue with good success.http://forums.avsim.net/dcboard.php?az=sho...&topic_id=46344I doubt installing the update will do much to stop the crashing you are experiencing though.

Hi,Firstly, I want to thank your answer to my help call.I have been able to resolve my issue in a very simple way. I deleted all files in the BACKUP folder.Its simple and it works.Best regards.

Yep - that was the problem all along.Glad to hear you got it solved.