Don't know where the AVG came from. The 404 error is generated for almost anything and don't think you can read much into it.
See if we can update to SP3. Close IE and Firefox, Open Chrome, go > https://chrome.googl...bdenadd/details
On the right, > Click 'Add to Chrome", check it appears, top right tool-bar. close the download tab.
Click on the IE launch tab.
Copy and paste link for the SP3 ISO, instruction in reply #372, into the IE address bar. > Press enter, > Save file to the desktop.
Go to > http://www.7-zip.org/download.html Please download .exe 32-bit x86 7-Zip for 32-bit Windows. This will extract contents from the ISO.