DavidR
15
Re “When I terminate Avast, it doesn’t help.”
I think your problem is elsewhere and probably IE6, given the other problems you are having.
Try this link if you normally use the English US version of programs:
http://en.www.mozilla.com/products/download.html?product=firefox-2.0.0.4&os=win&lang=en-US
It will start to load the page but there is a security alert at the top of the page (see image), click on the bar and you will get three options, Download, What is the Risk and Information Bar Help, choose download.
You will now have a pop-up with three options Run, Save, Cancel, choose save and choose a location to save it. Usually it will save to your desktop unless you choose another location, now you should be able to install it.
If you can’t do this, your IE or probably security settings are screwed up, sorry about getting technical and I’m at a loss as to what else to suggest, I so infrequently use it.
@ Alan
Yes, I was clutching at straws as the more I see of this the more I feel the web shield isn’t the true culprit given the other things going on with IE.