Asus P53E replacement of hard drive or replacement by a SSD Replacement

unscrew these two screws to remove the coverage

unscrew these four screws to take out the case with the hard drive disk

slip the hard drive to the left

pull the strap to remove the hard drive's case

unscrew the four screws of the case to remove the hard drive out of that case

remove the hard drice from its case

put the new hard drive or SSD, respectively in the case and fix the screws again (the HDD/SDD will only fit in the case in one way)

slip the case to the right to plug in the HDD/SDD again

close the case again