Normally would be to boot from the WIn XP disk let it run setup and Format the drive at the relevant part of setup.

To remove the Sys32 virus Trojan -

Instructions

1. End Infected Processes * 1

        Press "Ctrl" and "Alt" and "Delete" simultaneously.
      * 2

        Click on "Task Manager."
      * 3

        Click on the "Processes" tab.
      * 4

        End the following processes:
        "Server.exe"
        "System32.exe"
        "System33 trojan" v1.1.exe"
        To end a process, simply right-click on it and select "End Process."
  Delete Infected Files
      * 1

        Click on the "Start" menu.
      * 2

        Click "Search Files and Folders."
      * 3

        Search for and delete the following folders:
        "server.exe"
        "system32.exe"
        "system33 trojan v1.1.exe"
        "system33.txt"
        "worm.p2p.tanked.11"
        To delete a folder, simply right-click on it and select "Delete."