Windows Defender or third-party security software blocks the installer.
: Check the box for " Limit installer to 2GB RAM " in the game setup.
Run chkdsk C: /f /r (replace C: with your installation drive). Conclusion
Sometimes 64-bit systems struggle with the specific compression headers of older installers. Right-click the file of the game/software. Select Properties > Compatibility .
: Temporarily turn off Windows Defender or third-party antivirus, as they often block decompression processes.
Clear your browser cache and redownload the installer completely, preferably using a download manager to ensure file integrity. 3. Test Your RAM (System Memory) for Faults
Decompressing large files places a massive strain on your System RAM. Even a minor hardware instability can trigger Error -12.
Wait for the process to hit 100%, then type this command and press : sfc /scannow Use code with caution.
