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UPDATE: Windows 7 and 8 (as of around September 9th 2015) have been updated by Microsoft and reported as causing issues in the CD version of Rome. SEGA has acknowledged issues with running and installing the CD version under Windows 10 and has offered solutions by filling in their support form at (note that they may require further information from you). This article explains why Windows NOW may not run some old games. I migrated to Steam some years ago, but those with CDs have reported they will not work. SOLUTIONS (CD VERSION UNDER WINDOWS 7 & 8) (those wishing to just run vanilla just need the -ne option and can delete the rest of the line) You can view myt Steam launcher settings (for the Fourth Age mod) in the starter guide on this page:
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In this latter case you can have AA switched on. Another solution is to run in windowed mode using the -ne switch. Prior to that solution after the first boot up the game decided to flicker and report a DirectX 9 installation issue. Note that despite the above solutions, in my own case (I have RTW Gold on Steam) all I needed to do was to switch the AA off in the preferences file (although my resolutions in that file were also set to the same as my desktop). (possible original CD security issue? Check out ) An update to Windows 7 & 8 has caused issues with the CD version of Rome Total War.
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Windows 10 has caused issues with running Rome Total War.
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EDIT: Latest methods for getting RTW to run decently on Windows 10
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