I am having this error from the anticheat every time I try to open the game since this morning. I tried to repair the Halo MCC app with no success.
Yesterday I had a BSOD and I don´t if it´s due to that, or that I updated to the latest optional Windows 10 pro build, or to the latest game itself update. The fact is that I cannot play at all.
Help?
SOLVED: for one or more of the problems above mentioned I think some directx files got corrupted. Updating the graphics drivers and after that repairing the app in the windows 10 app list happened to solve the issue and now I can open the game normally again.