Navigate to > Windows Security > Virus & threat protection .
: Attempting to run older activators on Windows 11 can trigger Error 6 if they cannot write to protected registry keys.
Step 2: Fix the SolidSQUAD Universal License Server (Server_Install.bat) Solidsquad Error 6 Windows 11
Press the Win key, type , and hit Enter .
Look for recent blocks corresponding to your software installation time. Navigate to > Windows Security > Virus & threat protection
Step 3: Re-execute Registry Scripts and Environment Variables
: Older versions of SolidWorks (pre-2022 SP2) were never designed for Windows 11’s architecture. Antivirus Interference Look for recent blocks corresponding to your software
In the menu, scroll down to Exclusions and click Add or remove exclusions . Click Add an exclusion and select Folder .
Windows 11 User Account Control (UAC) restricted the local license server from running as a background service. Step-by-Step Solutions to Fix Error 6
Note: Remember to turn Real-time protection back on after the installation is complete.