What role does antivirus software play in Minecraft error code 1 and how can it be resolved?

Antivirus software might mistakenly identify Minecraft files (especially modded ones) as threats and block or quarantine them, resulting in error code 1. Try temporarily disabling your antivirus software or adding Minecraft's game directory and Java executable to its exception list. After this, relaunch the game to see if the error is resolved.