I had an SC one day who was bitching at me because I wanted to uninstall her Yahoo toolbar. It was obviously corrupted as it had an off-the-wall last used date of a year prior even though it came up each time she launched IE. It was causing the browser to crash, I knew this because IE ran in "no add ons" mode just fine. And no I wasn't going to upgrade her toolbar on top of a crashing version.
SC: Do not remove my yahoo toolbar!
Me: I need to uninstall it to fix the issue with the browser crashing.
SC: Well find another way!
Me: Okay then why don't I just disable it?
SC: Not even that!
Me: If you don't mind me asking why is the yahoo toolbar so important? You can always reload it, but I wouldn't recommend it....
SC: I have like 200 bookmarks that I don't want to lose!
Me: I personally would never recommend using a toolbar to store bookmarks because of issues like this happening. How come you didn't use IE's favorites?
SC: Because I like the yahoo toolbar better, okay?!
Me: Well as much as I hate to say it either you have your Yahoo bookmarks or your browser is going to continue to crash.
SC: You know what, I'll just take my computer to the store!
Moral of the story: Don't bookmark websites using an unstable toolbar.