Windows Xp performance worsened after latest updates!?

I installed the latest updates of Xp, and suddenly, after restarting, the performance dropped only in loading Xp. In details, the speed of loading windows is ok, until i choose my account to log on, here, it takes even more time than my old computer used to take (It takes like 3 minutes, so i can start to use the taskbar!!!), plus, not all system tray programs appear in the system tray (although they are functioning as the sound icon), and i checked in the start up msconfig section, and i found them all ticked, nothing wrong. And, they randomly not appear, even if i reconfigure each program icon to appear (and i find them already configured to appear, but i just redo it).

This might seem a trivial problem, but this is a frustration sharing, more than a problem solving, as i am sure that what caused this was a windows update dammit! This is incredibly stupid, stupid, stupid lol!

Here is the history of my updates:

Saturday, March 22, 2008

Security Update for Windows XP (KB926247)
A security issue has been identified that could allow an attacker to compromise your Windows-based system and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer.

Saturday, March 22, 2008

Security Update for Windows XP (KB942831)
A security issue has been identified in Windows Internet Information Services (IIS) that could allow an attacker to remotely compromise your Windows-based system and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer.

Saturday, March 22, 2008

Security Update for Windows XP (KB939373)
A security issue has been identified that could allow an attacker to remotely compromise your Windows-based system using Internet Information Services (IIS) and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer.

Saturday, March 22, 2008

Security Update for Windows XP (KB942830)
A security issue has been identified in Internet Information Services (IIS) that could allow an attacker to remotely compromise your Windows-based system and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer.


The problem happened just after i restarted for these updates. And, i actually removed the IIS from windows components to try a "Therapeutic Test", but it didn't work: still this performance drop at loading windows.

Oh: my xp is sp2 pro edition.

 

No-one knows?