If you are facing an issue with the size of icons in File Explorer, this should have been fixed automatically after installing the Cleaner module 1113 and running a startup scan (should run automatically after an update by default).
If you're having issues with icons on the desktop, I've read that this was caused by Windows itself and it was addressed in the latest insider preview build. What build of Windows 10 are you using?
I'm having issues with icons on my desktop.
I'm using Windows 10 x64 Enterprise, build 10240, and I do not participate in the Insider program.