Hello,
Running Windows 7 Home Premium, 64 bit.
For what it’s worth, an observation:
I turned IE Explorer 8 “off” (start / control panel / programs and features / Turn Windows Features On or Off / Uncheck Internet Explorer 8) as I use Firefox and thought turning off IE would reduce background memory usage and close any vulnerabilities. However, even when turned “off”, it still seems run in the background. I say this because when running CCleaner, items from IE still show up as having been cleaned, such as History, index.dat and temp. files.
I tried an experiment by blocking IE with Zone Alarm firewall while IE was “off” but found some sites would not function properly. Unblocking restored full function. So it seems that some sites/software needs IE to function.