Tried to do a normal update, which has worked numerous times before. Now the update screen just hangs. Tried uninstalling CCleaner and the uninstall screen just hangs. Tried manually deleting CCleaner and I get a screen telling me to close an open CCleaner program before I can delete?? Tried a new download in the hopes that it would overwrite the current program but the install screen also hangs. What's going on?
In all three of your actions it sounds like you haven't exited ccleaner before attempting the upgrade. Make sure ccleaner is closed (including monitoring) and rerun the installer
Try booting into safe mode and doing it.