If you’re getting rid of an old computer — selling it, donating it, recycling it, handing it down to a family member — wiping it properly is the single most important thing you’ll do. Hitting Delete on your files and emptying the Recycle Bin doesn’t actually erase anything. The data is still recoverable with free tools that anyone can download. Here’s how to do it correctly on both Windows and Mac.

Before You Wipe: Back Up and Sign Out
Once a wipe is done, your data is gone for good. Before starting:
- Back up anything you want to keep — photos, documents, browser bookmarks, password manager exports.
- Sign out of services tied to the machine: iCloud, Microsoft account, Google account, Adobe, anything that uses license counts.
- Disable Find My (on Macs) and any other anti-theft features.
- Deauthorize the machine in apps that limit installs (Apple Music, Photoshop, etc.).
Wiping a Windows PC
On Windows 10 or 11, the built-in reset tool does the job for most people. Open Settings → System → Recovery → Reset this PC. Choose Remove everything. When it asks how, choose Local reinstall or Cloud download (cloud is cleaner if you have decent internet). Then crucially: when prompted, click Change settings and turn on Clean data. That option overwrites the drive so the data isn’t recoverable. The basic reset doesn’t do this; the Clean data option does.
The process takes a few hours. Plug the laptop in and let it run.
Wiping a Mac
On modern Macs (running Monterey or later), the easiest path is built right into System Settings: System Settings → General → Transfer or Reset → Erase All Content and Settings. This wipes the machine cleanly and securely on Apple Silicon and T2 chip Macs.
On older Intel Macs, you’ll need to boot into Recovery (hold Command+R during startup), open Disk Utility, erase the internal drive, and then reinstall macOS from the Recovery menu. It’s a few more steps but still straightforward.
What About Just Pulling the Drive?
If the computer is so old you don’t trust the wipe, or you just want zero risk, removing the storage drive before getting rid of the machine is a reasonable option. You can keep it as a backup, use it as an external drive in an enclosure, or physically destroy it if it contains sensitive data. Most laptops from the last 10 years have the drive accessible behind a single panel, though some newer ultrabooks and Macs have soldered storage that can’t be removed.
SSDs vs. Hard Drives
SSDs and traditional spinning hard drives behave differently when wiped. Modern SSDs respond best to a built-in secure erase or the OS-level wipe options described above. Old-school multiple-pass overwrite tools designed for spinning drives aren’t necessary on SSDs and don’t really do what people think they do. Use the operating system’s tools and you’ll be fine.
If You’d Rather Not DIY
If any of this feels over your head, or you’ve got a stack of old machines you’re trying to get rid of cleanly, bring them by the shop. We’ll wipe them properly, and if they’re too old to be useful, we’ll point you toward responsible recycling. We’re in the lower level of The Regulator on 9th Street, open Monday through Friday. Call (919) 314-3327 if you have questions before you head over.
