On "new" systems or fresh installations, third-party antivirus software may not yet have the correct exclusions set for Windows Update directories. The antivirus may flag update packets as suspicious, severing the connection to wuauclt.exe and causing the process to terminate unexpectedly.
Wuauclt.exe crashes can occur due to various reasons. Here are some of the most common causes: why does wuaucltexe crash best new
To fix the wuauclt.exe crash, use the following step-by-step solutions. It is usually best to start with Method 1, as it's the most direct fix for the most common cause. On "new" systems or fresh installations