Wipe a hard drive without access to the internet

[MrBakerTM]

I have a PC that I'd like to sell today and I want to wipe the hard drive, but I have no way of connecting it to the internet. Is there any way to do this? Thanks for the help.

 

[manofchalk]

Why would you need an Internet connection?

Anyway, if its the OS drive then the only thing you can do is boot off a Linux Live Disc or USB and then wipe the drive, or move into an existing rig and wipe it from there.
The Linux option im not sure how to do, but to wipe a drive in Windows just hook it up, enter Disk Management and reformat the drive.