Along with the missing executable error on Steam, another common error is the message that pops up when it thinks the servers are too busy. Actually, it isn’t the servers causing this issue. Instead, it is most commonly due to your anti virus software. Due to the nature of this fix, it is quicker and easier to watch a video demonstration of it instead. Due to this, you can find the video below which has been watched over 100,000 times on YouTube. I hope this helps you get back to gaming right away!