Step 2: Go to Settings > Security Settings > Advanced Protection > Containment > Auto-Containment. Step 1: Open the Comodo Internet Security UI. Solution 3: Disable Auto-Containment on Comodo Internet Security Step 9: Open Steam PC Client and try relaunching the game. Step 8: Go to Compatibility tab, check for Run this program as an administrator option and click Apply. Step 7: Locate Steam.exe executable and right click to open its properties. Step 6: Click on More detail, select Steam-related processes (such as Steam.exe, Steam Client Bootstrapper or GameOverlayUI.exe) one by one and choose the End task option.

Step 5: Press Ctrl + Shift + Esc key combination to open Task Manager. Step 3: Click to open the drop-down menu, choose NOTE – Opt out of all beta programs option and Apply. Step 2: Click on Steam option > Settings > Account tab > Change button under Beta participation section. Step 3: Locate the game’s entry on the list and check the boxes next to both Private and Public networks. Step 2: Click Allow and app or feature through Windows Firewall option from the left side list of options. Step 1: Go to Start > Control Panel > Windows Firewall. If you have third-party firewall active or Windows Defender Firewall turned on, it might be blocking the game’s executable from connecting to the Internet. Reference Solution 1: Add Exception list for related Game’s Executable in Firewall

Solution 1: Add Exception list for related Game’s Executable in Firewall This error may caused by firewall, Comodo Internet Security or Steam beta client. Problem: “Unable to Initialize SteamAPI” error prompt after click on the game from Steam library.

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