I don't recall what stage 5 is, but the /r option can take quite some time,especially on larger drives. The /r option forces chkdsk to scan every sector on the drive, so be patient. I usually run the /r option before I go to bed and just let it run overnight.
Chances are that hard drive is failing the best option would be to copy off any important data to laptop and if the drive is under warranty rma it.
If you want a whole backup you would need an external usb drive hooked up to the laptop and hard drive image software like clonezilla.
I can not access this hard drive like i mentioned earlier. When connected to a laptop with external sata kit , the system sees it as local disk, when you try opening it , you get an error message "not accessible "
I have tried bunch of softwares but all failed. So of the software can not even identify the hard drive