as long as the drive switch is Mini9 to Mini9 you should not have any problems. The WinXP license is a Dell OEM version that will not (at least did not on my system) ask to re-authorize because all the hardware is the same. My SSD
switch went fine, but as mentioned, removing the SSD
screws can be a true PITA. I used the correct screwdriver and applied as much downward force as possible and still stripped out one screw head. On close inspection the screw was probably cross-threaded when it was installed at the factory (very slight angle on the screw). I covered everything with blue tape, carefully drilled out the screw head and the SSD
is now held by one fully functioning screw - no problems so far.