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We pre-purchased and pre-installed the game Shadow of War on our gaming PC through Steam this week only to discover it would not launch when we clicked Play. I wanted to post our fix here in case anyone else searching the Web for clues to this needs help.
Tried uninstalling and reinstalling the game (all 100gigs worth).
Tried rolling back the nVidia graphics driver.
Tried cursing (made me feel better but did not fix the issue).
Scanned and verified the game from within Steam
Ran sfc /scannow from the command line to make sure Windows was OK.
I ultimately realized the issue was with Visual C++ Redistributable
I had multiple version installed. Some we very old. I removed them all and installed Visual C++ Redistributable for Visual Studio 2015 from here and that fixed it. https://www.microsoft.com/en-us/download/details.aspx?id=48145
If anyone else had problems and found different solutions, let us know.