We installed Xandros Desktop OS v2 on a Pentium 4, 1.7 GHz Celeron (socket 478<!-- -->) running Windows XP (on an NTFS-formatted hard drive), with 512MB PC133 RAM, USB 2.0, a Buslink 10/100 ethernet card, Creative Audigy sound card and an ATI 9200SE video card. We also installed Xandros on an AMD Athlon XP 2600+ in an Asus A7N8X motherboard running Windows XP (on a FAT32-formated hard drive), with 512MB DDR RAM, a D-Link 10/100 ethernet card, nVivida GeForce FX video card, Creative 128 sound card and a 3Com 56K fax modem. Xandros detected all of the hardware correctly and installed the proper drivers automatically. Note that both computers were already running Windows XP Professional. I had no problems installing Xandros - it never touched XP. Xandros created and used its own partition during the installation setup. The installer and configuration routines also recognized the Sony DVD+/-RW drive.