THESE DRIVES WERE PREPPED AND TESTED FROM SCRATCH USING AN ACTUAL DELL OPTIPLEX 780 DESKTOP, WHICH WILL ALWAYS BE THE BEST AND MOST ACCURATE WAY TO ENSURE 100% COMPATIBILITY. SOME SELLERS USE METHODS THAT DONT EVEN INVOLVE USING THE SAME MODEL COMPUTER THAT THEY ADVERTISE, WHICH COULD RESULT IN YOU HAVING ISSUES WITH COMPUTER CRASHES OR A NON FUNCTIONING DRIVE.FULLY TESTED FOR THE LAPTOPS SPECIFIED IN THE TITLE. LIBRE OFFICE & A LIMITED WARRANTY IS INCLUDED.***IMPORTANT, READ BEFORE PURCHASING***
IF YOUR COMPUTER HAD WINDOWS 7 PRO, YOU MAY NEED TO TYPE THE LICENSE IN THATS ON THE STICKER ON YOUR COMPUTER. TO ACTIVATE WINDOWS 7 PRO, YOU MUST HAVE YOUR OWN LICENSE. A LICENSE IS NOT INCLUDED.
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