I can't install UxStyle, probably related with dll files?

I tried to install UxStyle, but it show me a window telling me "Your theme subsystem (e.g uxtheme.dll, themeui.dll) has been tampered with. Uxstyle requires these files be restored before you can continue. Check the forums if you need help."
I installed CustoPack before but already uninstalled because it don't have many choices of themes. So I thought gonna try UxStyle and apply some custom themes, but now I'm stuck at the first place.. Maybe CustoPack patched the files.. I don't know. I still can see CustoPack theme in the Theme folder though I uninstalled the software. Any idea how to fix it? Do I need to find the missing dll files? I will really appreciate if there any advice or helps. Thanks.

I followed the instructions and I able to install UxStyle. Everything smooth now.
Thank you so much for your help and the welcome, Jerry. =]

Hello i am having the same problem but every time i go to run the sfc /scannow commands in cmd it always gets to 9% and says Windows Resource Protection could not perform the requested operation. I have seen posts saying to this make sure the windows module installer service is enabled and set to manual and it is but it still does it.

Forget my previous post i fixed it by scanning the files separately using the sfc /scanfile commands.