Every time I close Opera (X at top right) Windows crashes. It goes to a blue screen that asks, "did you install any new software or hardware?" Only Opera. Uninstalling and reinstalling doesn't help. Downloading a new copy of Opera didn't help.
Windows Vista Home Basic, up to date.
Microsoft Security Essentials, up to date, no other security or firewall.
Opera version 34.0.2036.50, no add-ons, brand new download of Opera.
No problems with other browsers, Firefox, MSIE. Even if I close all tabs except one, it makes Windows crash.
Thanks for any suggestions.

"The previous system shutdown at 9:45:48 AM on 1/31/2016 was unexpected."
I can't find any other log at that time, but Windows did say, "If a solution is found, Windows will notify you." So, there must be a record that I'm not finding.

Every time I close Opera (X at top right) Windows crashes. It goes to a blue screen that asks, "did you install any new software or hardware?" Only Opera. Uninstalling and reinstalling doesn't help. Downloading a new copy of Opera didn't help.
Windows Vista Home Basic, up to date.
Microsoft Security Essentials, up to date, no other security or firewall.
Opera version 34.0.2036.50, no add-ons, brand new download of Opera.
No problems with other browsers, Firefox, MSIE. Even if I close all tabs except one, it makes Windows crash.
Thanks for any suggestions.