If your game launches for a few seconds but nothing happened, reinstalling Uplay may be the fix for you. When the Uplay app was outdated or not function correctly, the game may not launch properly. So a clean uninstalling then installing Uplay may help. ... Log in Uplay, run Rainbow Six Siege to check.

Why is Siege game not working?

Avast: Home >> Settings >> General >> Exclusions. Check to see if you are now able to play the game and use voice chat properly. If it still won't work, try restarting your computer and try again. The last step would be to uninstall the antivirus and try a different one if the problem keeps appearing.

How do I fix Rainbow Six Siege?

Select the game executable from the game folder, if you used the default install folder it should be: “C:\Program Files (x86)\Steam\Steamapps\common\Rainbow Six Siege” Select your issue or issues from the box to the right and click the corresponding “Fix” button.