Ensure you are choosing the correct .dmg or .pkg file tailored for your specific processor architecture (Intel vs. Apple Silicon M-Series). To help narrow down the exact cause, please let me know:
: Shut down your Mac. Press and hold the Power Button until you see "Loading startup options." Click Options , then click Continue .
The "Not admin, wrong version or custom error" on macOS Ventura is almost always caused by a conflict between modern system security and legacy patching tools.
: Ventura may cause high CPU usage (often by WindowServer ) or fan surges.
Try running your installer while in Safe Mode. If it works, a third-party background process was causing the conflict. Preventative Measures