Just finished a fresh install of WIn7 x64 on the wifes computer. (got itunes working per previous posts, thanks!)
When I'm logged in as admin, on speedtest.net I get downloads of 24+ Mbps. Then I login to the wifes account (limited/standard?) I get 11 Mbps or less on the same test location (same browser - firefox - lastest update). What gives with that?
I have the same software loaded on both accounts with the same standards install parameters. Notron 360 v6, superantispyware, Office, itunes firefox, chrome, revo uninstaller, ccleaner.
I used TCIPOtimizer to view the registry settings and they appear to be the same, but there are about a hundred+ to see.
Windows isn't downloading updates in the background is it? I've noticed Windows Updates tend to kill my download speed at times.
Another thing to test is to create another test account and see if the slow speeds persist.