Solvedmw3 crashing problem

After the update, I've been getting an error every time I join a game. After about 5 minutes of playing, it gives me this error:

Reinstall the game? Or download DirectX, please tell us what you've already tried

Might also try updating DirectX, google for a DirectX Update check, and re-validating your game files.

I always get this error when I play in windowed(no border) mode. Fullscreen has no problem. This is weird.

I dont know if this will fix your problem but it is worth a try

Step 1: Log out of steam and close the application comepletely (Task Manager after loggin out)
Step 2: Go to your steam folder in your program filee
Step 3: Search in the steam folder for a folder labeled "appcache"
Step 4: Delete the folder labeled as "appcache"
Step 5: Restart steam and log in the boot your game and see if the problem is solved

IDK if iut will fix this problem but I know it is working for the people wiht the new DLC getting the Invalid map file errors