shell infratructure host

Hello fellow Windows Wizards. (If I have chosen a wrong place to post I apologise, I'm new to this forum) Recently I've encountered a strange error. My PC was working just fine untill about 3h ago. But now whenever I turn it on, first I'm greeted with "Shell infrastructure host has stopped...

Title says it all really. This process(which as far as I can tell is genuine) is chugging up a ton of resources while seemingly doing nothing at all. Apparently its related to UI transparency but I don't even use a transparent theme. Any ideas as to how to get rid of this, it seems to impact...