How to get a sub version of Windows XP on your machine

Service packs released by Microsoft are called sub-versions. Often users get confused about what qualifies as a sub-version? These service packs are released by Microsoft to increase the performance of a computer installed with the Windows operating system and to offer better and enhanced security against various malicious software. The latest sub-version released for Windows XP is “Microsoft Windows XP Service Pack 3”. Reading the instruction below will help you to understand this better and you won’t have to dial up the Windows support number for assistance.
Instructions
Tips to get  Service Pack 3 installed On your XP powered machine…
• You should execute a proper backup for the entire files and folders kept on all your drives before going for the installation of the service packs. If you are having a computer that runs on Windows XP, then access the "Tools" menu to unleash the “Advanced” window in which there will be a tab with the label “Automatic system recovery”. Click on it to engage the ASR wizard.
• Call off every other anti-virus software.
• Make sure that you are having an empty space of 3.5 GB on the drive where you intend to install the sub-version of the Windows XP by accessing "My Computer"  from the desktop interface and then go to the drive where Windows is installed, which is usually the “C Drive” and right click on it to reveal the “Properties” of that particular drive.
• Now go to the User Account Control Interface by clicking on the “Start” button and accessing the “Control Panel” and check if there are any other persons logged into your system at the moment.
• Connect  to the "Microsoft Windows XP SP3 Download" official Microsoft website and  stab on the "Download" tab.
• Now you will see the tab with the label "WindowsXP-KB936929-SP3-x86-ENU. exe" which is  an executable file and has to be saved to the “C Drive”.
• Now bring on the Windows Explorer from the “All programs” tab in the startup menu.
• Now go to the “C Drive” and run the ‘. ex’ file with the label “WindowsXP-KB936929-SP3-x86-ENU. exe”.
• Clicking on the ‘. ex’ file will extract and copy down the files required to install the sub-version of Windows XP on your computer.
Just dial up the Windows support number if you are facing any sort of thorny situations while installing the sub-version of Windows XP.