Hi Gordon.,
Train Simulator version 1 is compatible with Windows 7 64bit edition. Click
hereto verify.
Some of the issues can be resolved with updated drivers or by upgrading your hardware. After updating or upgrading it is important that you use the Train Simulator Troubleshooter to reprofile your new hardware and drivers. To do this follow the steps below:
- Click Start, point to Programs, point to Microsoft Games, point to Train Simulator, and then click Train Simulator Troubleshooter.
2. Click Change Video Driver.
3. Click OK.
4. Click Play Train Simulator.
Also, keep your Windows 7 up to date by checking for Windows updates.
Use your Start menu to check for updates
Windows Update is included in Control Panel. In the future, to check for updates (or if this webpage doesn’t open Windows Update automatically):
- Click the Start button, click All Programs, and then click Windows Update.
If the above suggestions do not help, uninstall and reinstall the game again and check.
Refer the below link to uninstall or change the program
Uninstall or change a program
http://windows.microsoft.com/en-us/windows7/Uninstall-or-change-a-program
You already have Windows 7 installed but you have not specified the version.
Installing Windows 7 professional might not help because you already have Windows 7 installed which is 64bit.
You may also post your query here: http://www.microsoft.com/games/en-US/Community/Pages/Forums.aspx
Azeez Nadeem - Microsoft Support