Temporarily disable the software before you attempt to launch Warzone. Be cautious and avoid downloading suspicious files from the Internet when your PC is NOT under protection. If Warzone runs properly when your antivirus is disabled, you know the antivirus is the problem, and you should contact the developers for assistance.
Make sure your antivirus is not blocking Warzone and/or Battle.net. You can also try adding Warzone and/or Battle.net to the whitelist of your antivirus program.
Blizzard Support has a list of security software that’s game-friendly. If you do find your antivirus causing the not-launching problem and are looking for a new one, try those out. Just note that security software is still a common cause for many game issues, so you may still need to check them if you encounter other game errors.
As some of the updates are not antivirus friendly. So this updates are prevented from getting install. So the best steps you can do is disabling it.
Regards,
J Wick
