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Hard disk space requirements for Windows XP Service Pack 1

This article discusses the hard disk space that is required to install Microsoft Windows XP Service Pack 1 (SP1) on a computer that is running Microsoft Windows XP Home Edition, Windows XP Professional, or Windows XP 64-Bit Edition. The working space that is described in the following table is required for files that are used only during the installation. This requirement is temporary and does not contribute to the total space requirements. The space that is required for the files that remove SP1 is used for the storage of the files and settings that are changed during the service pack installation. You can automatically back up these system files during installation. You must have these files if you want to remove the service pack later.
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The following table lists the hard disk space requirements for installing Microsoft Windows XP SP1.
                                               Space required for              Space required for installing    installing SP1 from the              SP1 from a shared distribution   service pack CD-ROM or the              folder on a network              Windows XP SP1 Web site------------------------------------------------------------------------------Service pack  145 megabytes (MB)               145 MB (for the service only          for the service pack             pack) + 283 MB (for the service                                               pack files contained in the                                               %Windir%\Servicepackfiles                                               folder)Subtotal      145 MB                           428 MBWorking space  56 MB                            56 MBFiles that    233 MB                           233 MBremove SP1Total         378 MB                           661 MB              434 MB peak during               717 MB peak during              installation                     installation					
Also, you must have 30 MB free space on the first primary system partition for installation.The first primary system partition is the disk volume that contains the hardware-specific files that you must have to start Windows. For example, the primary system partition contains the Ntldr, Boot.ini, and files.

For additional information about how to obtain Windows XP SP1, click the following article number to view the article in the Microsoft Knowledge Base:
322389 How to obtain the latest Windows XP service pack

Article ID: 326583 - Last Review: 06/19/2014 14:59:00 - Revision: 4.0

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