How to wipe a laptop before recycling

Deleting files is not wiping. Deleting removes pointers to files; the data itself usually stays until something overwrites it. Use the method that matches your drive and encryption state.

Before any wipe

Back up anything you want to keep — a proper wipe cannot be undone.
Sign out of accounts and remove the device from your account where the maker requires it.
Charge the device or plug it in so the process is not interrupted.

Step 1 — Check encryption first

If your laptop drive is encrypted (for example with full-disk encryption turned on) and you perform a full factory reset / OS reinstall that destroys the encryption keys, the remaining data is protected by that encryption — this is the Purge idea in NIST SP 800-88: make recovery infeasible without physically destroying the media.

Step 2 — Factory reset / clean reinstall

Back up, sign out of cloud and messaging accounts, and de-authorise the machine where required.
Use the operating system’s built-in reset / erase option and choose the full erase / clean-data option where offered, not the quick option.
Reinstall or leave the machine at the setup screen — do not sign back in with your accounts.

Step 3 — Unencrypted drives and older machines

An unencrypted hard drive (especially a spinning HDD) or an older device needs more than a reset: use a manufacturer secure-erase / sanitize command for SSDs, or a full overwrite tool for HDDs — the NIST Clear approach. Follow the drive maker’s own tool and instructions; interrupted erases may not complete.

Step 4 — When to destroy instead

If the drive is dead, will not complete an erase, or held highly sensitive data while unencrypted, physical destruction (Destroy in NIST terms) is the defensible route. No DIY method should be described as making data “unrecoverable” without its conditions — encryption state and media type decide that.

Then drop it off

Laptops are e-waste: take the wiped machine to a S.A.F.E. Center or a county event. California’s SB 1215 also expands covered e-waste to battery-embedded products from January 1, 2026.

Wondering what professional recovery would cost before you decide? Data Recovery Cost Check gives a cost frame for that branch — get the data back first, then wipe or destroy the original.