What is the MOST THOROUGH way to repair a HD?

I have some HD's that I used in a PC that had a faulty power supply.

Both the PC (and even my Mac) recognise the HD's, can format them, etc.

BUT when they are formatted and then Windows installed on them they won’t boot.

So the drives were damaged somehow by the faulty power supply.

I'm trying to find a way to repair them.

Anyone have any ideas?

replace the platters?

Hard drives are extremely delicate pieces of hardware. You can't really just "repair it" like you can a cars transmission. If the hard drive is faulty and not trustworthy then replace it. Unless your buying 15k rpm fiber channel drives, the most a decent HDD will bang you is $100.

You could always try this http://www.meetmyattorney.com/slink/mt- ... 00275.html

i remember reading about the science behind the freezer trick. apparently, the error that is fixable by it, is that the read/write head has come into permanent contact with the platters because they have gotten too big [because of the heat]. cooling the platters down would reduce their size and therefore eliminate the problem. the only thing you have to remember before doing this is to put the hard drive into a "freezer" lock drive as you dont want any moisture to potentially become ice.

this only works some times and only till it heats up again