Unable To Load Steamclient64.dll [updated] -

I am currently encountering an error message stating "unable to load steamclient64.dll" whenever I try to launch Steam or a Steam-related game. This prevents the application from starting entirely.

Completely close Steam (check your Task Manager to ensure no Steam processes are running). Restart your computer. unable to load steamclient64.dll

Open your Antivirus (Windows Defender, Avast, Bitdefender, etc.). Check the or Quarantine section. I am currently encountering an error message stating

An outdated OS can lead to compatibility issues with Steam’s 64-bit libraries. unable to load steamclient64.dll