Hi Fernando, Thanks to your advice I install XP SP2 on my laptop computer. "Medion MD 96370 with DVD-RW on ATA, HD on SATA and pre installed Vista Home Premium." I trying to made fresh installation of XP but without your guide I can't (invisible HD). Now everything looks OK but in Properties - Device Manager - Other device - Unknown Device. "Location on microsoft ACPI - Compliant Embedded Controller" "Details - Device Instance Id - ACPI\PNPOC32\2" "Hardware Id - ACPI\PNPOC32 *PNPOC32". Can you help mi solve the problem (I try to reinstall all available drivers, doesn't work). Happy New Year Gruby
