I won't go into detail how some of our members are adamant that Windows 7 does not need to be tweaked.
A couple of items stand out to me, the 3mb of ram and the broken mouse pad.
Is this the original ram? And, do you have the mouse pad disabled?
With the increased demand of Ultimate you would do well to try a matched pair of ram sticks totaling at least 4GB.
The mouse pad? well, it would be best to make sure its out of the way and disabled.
Now we come to prefetch. How many times have you rebooted your machine since the upgrade, and do you have Indexing turned on?
You'll also often find for the first few boots there might be a some extra disk activity -- this is due to a complex algorithm known as "pre-fetch". Windows is gathering (internally) statistics over what you are running and will after a few days have built a database which at boot time will "pre-load" some of these into RAM. This is in fact quite OK but you'll probably see a slight slow down until the pre-fetch is built.
Source:
http://www.sevenforums.com/performa...just-upgraded-ultimate-now-computer-slow.html
You stated it has been two weeks since the upgrade, how many times have you restarted your machine? I would at least shutdown at night and then restart in the morning until your system gains speed, the restarts will help because the prefetch also works from the boot process, and as long as the machine remains idle (overnight or when your asleep) the prefetch has nothing to look forward to. The system has to be busy in order to learn how it can prepare for your next request.
And if you have Indexing turned on you could turn it off until the prefetch is completed, but it would help to turn it back on when you notice your machine running better.
There is also a concern about what programs are running at startup, and memory use.
Use this link to see what is starting along with startup. Read all the information but Use Method three:
http://www.sevenforums.com/tutorials/1401-startup-programs-change.html
Then this for:
http://www.sevenforums.com/tutorials/12523-resource-monitor.html For now we only need to see a screenshot of #7, the memory tab, but may want to see #'s 6, 8, and 9 later.
Please post screenshots of the startup tab and the memory tab in your next post, here's how
http://www.sevenforums.com/tutorials/9733-screenshots-files-upload-post-seven-forums.html