BC Programmer,
Sorry, this jumped out on me.
In the startup menu there is no mention of `no add-ons', but perhaps I do not have any.
My mistake, I'm using a windows 7 machine and I assumed they would be in the same place on both; I just checked, you should be able to get to it if you
Click Start -> All Programs -> Accessories -> System Tools, and then click Internet Explorer (No Add-ons).
If it's not there, or you cannot find it, you can also Also use Start->Run and enter "iexplore –extoff" (without quotes). Which should start internet explorer without add-ons; then see if you can download anything.
I am not too clear about add-ons, I presume they have to be actually added and are not things that are marked in any way in the options.
Anyway thank you for trying. If what I have written here is wrong, pleaase let me know.
Personally, I don't even use IE at all, and my IE8 is loaded with add-ons; a lot of sites automatically install add-ons as well. Either way, for the most part I'm following a google on the subject which came up with a number of hits (as well as a MS KB article) that said that a common cause of the "Page not found" for downloads was add-ons. I'm not certain of course, but it's a lead worth following I think.
Also, you can see what add-ons have been installed by going Tools->Manage Add-ons.
I regularly delete these temporary files, both by doing what you say in the options and by simply seeking the files in FAR (a windows idea like Norton Commander) which shows up ALL files including hidden, system and so on (which Explorer does not) and deleting them. I can delete all the folders except one, and in that one I delete the files. (You see from this that I am an old DOS man who has some difficulties with windows and more with the internet, but generally I manage).
Explorer can be configured to show hidden and system files. Actually, one of the first things I do after installing a version of windows is change the explorer options.
1. Tools->Folder Options, View Tab
There are a number of options here; I disable "Hide protected operating system files" "hide file extensions for known filetypes" and enable the radio button to "Show Hidden files and folders". This of course isn't to say you should use explorer rather then FAR; this may make those times you do use explorer less aggravating. (I know also it has nothing to do with your original problem but I figured I'd note it anyway)