how can I clean my HDD

I am sending my computer out for repairs, so I've been thinking along the lines of what would happen if I needed my hard drive cleaned. Now I realize there's not really any risk here at all, but now my mind's focused on what I'd do if I'd need to erase all the bad shit on my hard drive and leave no evidence, aside from just breaking it or something like that. Just tossing thing in the recycle bin and deleting them doesn't make them go away, I understand! Also shit in my web cache etc

Items deleted in the recycle bin don't get "deleted" until the disk needs to write something over the disk space where the supposedly "deleted" items are stored.

>>2
And that would only happen if the HDD didn't have much free space.

fileshredders. They  write arbitrary data on the empty space on the disk several times, making the data nearly impossible to retrieve by your average data hunter. web cache varies by browser, google it; I don't remember what to do about other temp files.

However, the only 100% surefire thing you can do (lol pedo/hacker in trouble scenario) is destroy it, e.i. hard disk shredding company, incineration, corrode in a strong base/acid, etc. That's more reserved for banks, military, etc.

use a soft moist cloth and wipe in a circular motion

>>5
Asshole, it's center-out, you're going to make it unreadable >=(. Bleach helps too.

boil it in a pot of tamato soup

>>7
yum

>>1
Lol pedo rot in hell

>>1
Techs can't be fucked spending the time to unerase shit. Takes too long and their is work to do.

Retard pedo is retarded.