Here are the unnecessary Start up items you can disable. Best way to do this is to use the program CodeStuff Starter. With this free program you can disable unnecessary starts in the Start Up file AND in Services, in addition to stopping processes running similarly to using Task Manager.

High Definition Audio Property Page Shortcut>>Realtek audio card related - probably adds the odd feature to one of the "Sounds" Control Panel applet tabs - doesn't appear to be required
SunJavaUpdateSched>>Java update scheduler not required and doesn't appear to work much of the time. Update manually.
Adobe Reader Speed Launcher>>supposedly speeds up opening of Adobe Reader, speed gained is negligable. Not required
TkBellExe>>Real Player update scheduler. Not required. Update manually
iTunesHelper>>Installed with Apple's iTunes for Windows. Uses ~3-4MB of memory
swg>>Added by the Google ToolBar for Internet Explorer. This program will notify you when you attempt to change the Internet Explorer search engine
SpybotSD TeaTimer>>not required turn this off via Spybot, Tools, Resident. Take check mark out of TeaTimer.
WMPNSCFG>>Windows Media Player update alerter. Update manually.
Google Update>>google update alerter, not required. Update manually
BitTorrent DNA>>Not required. P2P file sharing, very dangerous activity. Turn this off.
Microsoft Office>>not required. Does not speed opening of Office programs. Turn this off.
Windows Search>>not required.

Services not required at Start;
Lavasoft Ad-Aware Service>>turn this off. Basically useless and just uses memory.
Bonjour Service>>installed with the iTunes software. Not required to run at start up.
Google Updater Service>>exactly what it says it is. Not required to run at start up.

Here are unnecessary or no longer needed programs you can uninstall via Add/Remove:
Hijackthis 1.99.1
HijackThis 1.99.1
J2SE Runtime Environment 5.0 Update 10
J2SE Runtime Environment 5.0 Update 11
J2SE Runtime Environment 5.0 Update 3
J2SE Runtime Environment 5.0 Update 6
J2SE Runtime Environment 5.0 Update 9
Java(TM) 6 Update 2
Java(TM) 6 Update 3
Java(TM) 6 Update 4
Java(TM) 6 Update 5
Spybot - Search & Destroy>>>>>>
Spybot - Search & Destroy 1.5.2.20>>>Both of these can go and then download the new version 1.6. Just be sure NOT to use TeaTimer.
Viewpoint Manager (Remove Only) Remove the Viewpoint Manager
Viewpoint Media Player>>very suspect program, Viewpoint Manager is considered as foistware instead of malware since it is installed without users approval
Viewpoint Toolbar>>

Judy