1. Windows
2. Drivers
3. Motherboard Drivers
4. Windows XP Service Pack 1a (SP1a) Download

Update your copy of Windows XP with this inclusive service pack.

Windows XP Service Pack 1a (SP1a) Editor's review

Workaround: XP SP2 includes SP1, so get that instead. Then install SP3.Supposedly a SP1 offline installer did exist, so if you really want it you may be able to locate it.Reference: http://superuser.com/questions/347245/network-offline-install-of-windows-xp-sp1
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