ntfs file system have drive/folder permissions so if youll connect it to another pc youll have to set em right in order to access the data , xp home doesnt support changing permissions only the pro edition does (but only after "use simple file sharing" is unchecked in folder options) then you have a *security* tab when you right click.. and goto properties , on the other hand theres a program called file security manager , for manging permissions on xp home
http://www.softpedia.com/get/Securit...-Manager.shtml , as for the driver it all depends on the mobo chipset, on modern chipsets theres no need for a driver (unless using sata raid) , but if the mobo chipset doesnt support sata compatability mode (emulates sata as ide so no driver is nessary) then installing the drive aint gonna be a *walk in the park* if that pc alredy have an sata hard drive then there wont be any issues as the driver has probably alredy been installed or the chipset supports the compatability mode , but if theres no other sata hard drive on that pc or windows wont detect the hard drive after youll connect it then youll have to make a repair install and then use the sata floppy driver (or use nlite to slipstream the driver if it got no floppy drive) , theres no data loss on a repair install it only replaces currupted/changed windows files , all other data will remain intact including the installed drivers/programs , you can make it easier by buying an sata to usb adapter , and if your gonna use it for casual backup better use backup software like good sync