And did you reboot?
Did you reboot into SAFE MODE?
These are common tricks / methods to get stuff uninstalled.
there's been a lot of "Click Skype to Call" prompts that come up when things are freezing up. which i've said No to so far. i wasn't sure if that was an essential component of Skype, but i tried uninstalling it and it won't let me... it says i have to close all Chrome windows first but they're already closed. there's a question in there somewhere!