Run Update.exe to Install Windows XP SP1

To install the service pack, follow these steps.

NOTE: Windows XP must be installed on the computer to use this method.

1. Disable any real-time antivirus programs that are running on the computer.
2. Connect to the shared distribution folder that contains the service pack source files.
3. In the Update folder, run Update.exe.
   
   For example, to install the service pack from the E:\XPSP1\I386 folder, type the following at the command prompt, and then press ENTER:
   e:\xpsp1\i386\update\update.exe
4. When the installation is complete, restart the computer, and then restart the antivirus programs that you disabled in step 1.

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