Solve : security pack 1 security update for windows?

1.	Solve : security pack 1 security update for windows?
Answer» I cannot update the security pack 1 on my computer, is this an IMPORTANT update and why doesn't it work, should I pause the avast SYSTEM I am using first? Thanks!have you set windows to auto update it should work it should not do any harm for a SHORT while to pause the a/vStandalone version or via Windows Update? And what exactly happens?http://www.microsoft.com/windowsxp/using/security/expert/russel_installsp2.mspx

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