Windows XP is one of Microsoft’s most popular operating systems, and though it’s starting to show its age, many people still use it exclusively. Whether you’ve got an old computer that you want to get functioning again or you want to install XP on your new machine, it will only take a short while. See Step 1 below to get started. Part 1 of 3: Starting the Setup Process 1 Ensure that your computer can run Windows XP. Your computer will need to meet or exceed the minimum system requirements in order to run Windows XP. You can find your system information by either checking the computer manufacturer's manual, or by running DirectX Diagnostic on an existing Windows operating system of the computer. To start the DirectX Diagnostic, open the Run dialog (press WinKey+R simultaneously), type dxdiag, and click OK. Minimum System Requirements 300 MHz Intel or AMD CPU 128 megabytes (MB) of system RAM 1.5 gigabytes (GB) of available drive space Super VGA (800x600) ...