Hi, Dell 3138 laptop comes with windows 8.1 insatalled.
I removed the hard disk and connected it to windows 7 installed desktop for copying files. Unfortuanatily it showed at first some MBR option and I just clicked ok. After that i looked on and saw the drive was showing only 'format' option when i tried to open it.
And worse when I tried to put back the hard disk to dell 3138, it wont boot. It shows 'No boot device found. Press any key to reboot device' .