Service Pack 3 for Windows Fundamentals for Legacy PCs Supported Operating System Windows Fundamentals for Legacy PCs Disk Space Requirements This SP3 Update for WinFLP can take up to 750MB of disk space; this includes the installation files, and backup files to support uninstalling the update. When installing this Service Pack update from the web, a folder is created in your Windows directory called ServicePackFiles. This folder is 375MB in size for this SP3 update for WinFLP. The WinFLP installation, depending on your configuration, will have an uninstall folder of up to 300 MB in size. Insufficient Disk Space If there is insufficient free space on the system drive, you can use a USB flash drive to install the SP3 package. Please see the Knowledge Base article "You receive error messages if there is insufficient free disk space on the system drive to install the Windows XP Service Pack 3 package" and follow the instructions to install the SP3 Update for WinFLP on systems with low available disk space. Problems that are fixed in Windows XP SP3 To view a list of problems that are fixed in Windows XP SP3, see the Microsoft Knowledge Base article "List of fixes included in Windows XP Service Pack 3". NOTE: This information applies to the SP3 Update for WinFLP with the exception that if the binaries or technologies do not exist within WinFLP , or if they are not installed as part of your WinFLP image, then they will not be installed or updated by the SP3 Update. Code: support.microsoft.com/kb/958255 Code: download.microsoft.com/download/3/2/0/3203D3F6-B097-4A7F-A9DD-688E1EA47B00/WindowsXP-KB958255-ENU.exe