I did everything that you told me Daavee in your link. Except for the Windows Search. Why do I have to do that? Let me know. Thanks.
(Just saw your last post; sorry I had missed it.)
Please clarify. Did you indeed do EVERYTHING that was suggested? Including:
Uninstalling Norton?
Running the Norton Removal Tool from the web link I had provided?
Installing MSE?
Running TDSSKiller? (If so, what were the results?)
You also need to be 100% sure that Windows Search 4.0 is NOT installed. My post on p. 3 of this thread contains all the info you need to determine if it is or not.
Another thing you need to do is to check if your hard drive's transfer mode slipped from the faster DMA mode to the slower PIO mode. For more info:

