Are you getting a message telling you an error occurred while attempting to activate FSX or that there is an incomplete installation? Have you tried to repair FSX and the repair fails on each attempt? Is it impossible to uninstall the remnants of the programme?
Are you getting messages like:
"Error 1603: fatal error. Consult Msi.chm etc"
"Error 1706: No valid source could be found for product MS FSX. "
This despite the CD's being the original genuine MS discs.
"Error 1722: There is a problem with this Windows Installer package"
"Setup could not find a file on the specified path. Please check that the proper disc is inserted or specifiy a new path.
Unable to locate file E:\MS Flight Simulator X.msi"
This one even though you can see this very file, right there on the original CD.
I had all those problems and could not find a fix for over a week.
Here is the solution:
Download this tool: The Windows Installer Clean Up
Unzip, run/install and open the tool via the Programmes menu. Find the FSX related remnants of the initial install and clean out.
Restart your PC.
FSX should load perfectly.
If used correctly it works like a charm, I've used it.
many thanks for the solution to uninstalling FSX