We know about it, and it's not related to this problem.

The current annual issue isn't code-signed. Windows will be a little fussy at installation. Ralf left for Gen Con just hours after he published it, so he will fix it when he gets back. In the meantime you can get around it by overriding the warnings.

That's very kind of you. Thank you :)

I have 2 PCs and much prefer Win 10 on the older machine. If it was possible to run Win 10 on this new machine I would.

Let us know how it goes if you try the suggested remedy above?

As a note here that has nothing to do with CC3 or its installation I was recently suffering the same problem with Explorer nearly every time there was a Win 11 update. The update would go wrong and I would have to go through a series of convoluted steps to uninstall the update before I could get anywhere with the PC at all.

After several frustrating incidents of this kind I discovered the cause was a free third party app I had installed in order to have my Start Toolbar at the top of the screen where I have always prefered it. Win 11 removed that option. Once I uninstalled that app everything was fine again. Unfortunately, I now have to accept that the toolbar will be forever at the bottom of my screen where its a counfounded nuisance.

If you have installed any third party software to modify the way Win 11 works for you, it might be an idea to try uninstalling it just to see if it cures the problem.

I've not heard of that before reading your comment, but there are some things you can try.

1. Turn off your AV while you are installing
2. When you run the installer, do so by right clicking the installer and picking "Run as Administrator"
3. Ok the question asking if you want this app to make changes to your system.
4. After installing, turn your AV back on

Or, if you would rather not try that first off, please log into your Profantasy account on the main web page and contact Tech Support using the Support tab.