I was running Windows XP Pro x64 with SP2. Made a new partition, installed Windows 7 on new partition. On boot, I could pick Windows 7, or older Windows OS (XP Pro x64 SP2, basically Server 2003 SP2).
My father recently bought a Dell Latitude D800 (XP Pro, 512MB memory, 60GB 7200RPM HDD - all pure "Dell stock" equipment). From his and my stepmother's descriptions, it will give them BSODs with the ...