Yes it was an issue with my end and it could happen to others. I had an older second PC (with an earlier version of Windows 11 on it), and after a WoWs installation I proceeded to install your mod pack. Immediately Windows popped up a security message asking whether I wanted to proceed etc. On my main PC I never had that so delved into the security settings. In this case I went to, 'Privacy & Security'/'Windows Security'/'App & browser control' (opens a new window). Click on 'Reputation-based protection settings', then turn 'Check apps and files' to 'Off'. You will get a UAC message asking whether you want this app to make changes to your device, just click on yes and from there you will be able to run your mod packages. Hope this helps others with the latest versions of Windows 11.