From what I have been able to find there does'nt appear to be any singular fix for this problem so you could try these to see if they help. Do you have a Canon Printer or Scanner that was recently installed.
Go to Start, Run and type in msconfig. Go to the Startup tab, and uncheck OmniPage.
If you have a Canon printer with OmniPage Optical Character Recognition software, you will need to go to the OmniPage web site and download the Vista compatable version in order for IE 7.x to work properly.
Go to Start, Control Panel, then Network & Internet. Then click on Internet Options, go on the Security tab and DISABLE the "Enable Protected Mode" checkbox for all internet zones.
In Windows Internet Explorer 7, go to the Tools menu, select Phishing Filter, and then click Phishing Filter Settings. In the dialog box that appears, under Phishing Filter, select Disable Phishing Filter.
Rado's Fix - Internet Explorer Has Stopped Working Error Message Problem In Windows Vista
http://tinyurl.com/5m9g4z
Internet explorer has stopped working
http://www.eggheadcafe.com/software/aspnet/30511013/internet-explorer-has-st.aspx
