Yeah, I'd suggest a clean install.
And I find IE10 on the desktop and Chrome to be just as buggy all the same, just with different things. Both kept freezing for some reason, while IE10 Metro works fine (except when I tired to share a FB status update and the "Post"/"Submit" button was past the bottom of the page and I couldn't get to it, but that's a formatting compatibility issue, not stability).
Anyone know how to have two windows/tabs side by side in Metro IE10? So I don't have to use a desktop browser (which like I said both Chrome and IE10 Desktop are very unstable and unreliable for me)