okay this is still happening >>>
BSOD when uninstalling Opera11 >>> "System_Service_Exception"
1 this only happens when Avast is installed (well Opera doesn't load any driver so that must be something else conflicting, and the answer is Avast, as there's no problem uninstalling Opera11 when Avast is not there).
2 this happened already here on a previous install of Windows (W7/64) with Avast 5.0.677 and Opera 11 alpha), so, as I've had (for unrelated reasons here) to re-install Windows in the meantime, my setup is not the cause.
3 I could reproduce just now with Avast 5.1.798 and Opera11 beta (
http://my.opera.com/desktopteam/blog/2010/12/06/extension-improvements-updates-to-core-and-some-other-nice-fixes ), any attempt to uninstall Opera leads to a blue screen, did it twice a few minutes ago.
4 when it first happened, as said with Avast 5.0.677 and Opera 11alpha, I already emailed Vlk about it, uploaded a memory dump to Avast ftp and gave Vlk the password, so I guess there's no need to go through that again, concerning this issue, Avast has my data already. Please fix that
edit: just adding if needed that of course Opera 11 can be properly uninstalled in safe mode (i.e. when Avast isn't loaded) or in normal mode, when Avast is not installed at all.