Selling desktop, will the installer truly wipe everything?

Hey thanks in advance,

I want to make sure after it’s shipped nothing can be recovered. Does the installer write over everything or how does that work?

Hello, I’d recommend using scrub and the dod sequence.
You can use this tool on a live system booted from a USB key to completely wipe your disk.

Please note that this process might take a while.

LMK if you have any questions!