UltraUxThemePatcher not working, possible issue with UxStyle that wasn't uninstalled before Creators Update

Question

I updated to Creators Update (V1703 Build 15063.540) and I want to use custom themes. So I patch my files using the latest UltraUxThemePatcher. However, after patching, whenever I try to open the "Themes" setting, it crashes. If I uninstall it, I can open "Themes" again. I've tried selecting the custom theme first, and then installing UltraUxThemePatcher but the themes don't work so clearly there is something wrong there.

I don't know if there is some conflict with UxStyle which was what I was using to patch for custom themes before the Creators Update. I can't uninstall UxStyle using the uninstall option from "Programs and Features". When I try, Compatibility Assistant says:

This app can't run on this PC. UxStyle doesn't work on this version of Windows. An updated app may be available

I've run sfc /scannow, I don't know if that removes UxStyle.

Any help?

Edit: The "duplicate" does not solve my problem. I am trying to use UltraUxThemePatcher, not UxStyle. UxStyle does not work with the Creators Update. https://github.com/riverar/uxstyle/issues/37

Solution

Figured it out. As I suspected, it was due to UxStyle not being uninstalled and conflicting with UltraUxThemePatcher. The uninstall option for UxStyle still does not work for me, even after I tried disabling Compatibility Assistant. However, you can effectively disable UxStyle by removing the executable "unsignedthemes.exe" that is located in the "Windows" folder. AFAIK, UxStyle runs that exe at startup and that is how it allows themes.