i used to have a seagate 160 gb hard disk only with no problems at all windows 8 installed , 1 week ago i purchased the wd green wd10eads 1tb and made it my main os and unplugged the seagate one because i cant reach the sata power cable together for the 3 (dvd drive, seagate and wd) but after 1 week i started having problems by getting black screen after windows loading and its happening everytime i format my hard drive, so i decided to put the seagate hdd back as a substitute for the dvd drive and make the wd my secondary hard drive , things are well now but, everytime i start windows its scanning and repairing the wd hard drive and sometimes its taking forever