SanDisk Extreme 500 SSD Windows XP install?

the extreme 500 come formatted in the exFAT sile system. Microsoft used to provide a patch for XP to add exFAT support but that patch is no longer available.  You could try connecting the drive to a Win 7 or higher computer and formatting in NTFS and see if that would work with XP. It may not work though and XP is not a supported OS for the drive so if it does not work there may not be a lot of options for you.