I've been using a laptop that my employer reimbursed me for two years ago. Although I consider it my personal device, my boss is insisting I return it since I'm quitting. I have a lot of personal data on it—photos, files, and my internet activity—which I'd like to wipe before handing it back. What are the best methods to ensure my personal information is completely erased?
5 Answers
If you’re worried about things not being fully deleted, try formatting the hard drive multiple times or even using a program that overwrites your data before installing Windows again. It’s more thorough that way.
First up, you should definitely ask your boss for the model and serial number of the laptop. If there’s no formal documentation on it being company property, they might have a harder time demanding its return.
To be 100% certain, consider pulling the hard drive out entirely. That way, they can't access any personal files, and you can always retrieve your data later if needed.
Factory resetting the laptop is a simple option, but it doesn't guarantee all your data is gone. Make sure you backup everything personal first, then do the reset and choose to keep nothing.
Resetting often leaves some data behind; I’d recommend a more thorough method.
For a thorough clean, consider creating a Windows install USB drive. Boot from it and wipe all the drives completely, then install a fresh copy of Windows. If you need help with this, feel free to ask! I can guide you step by step.
I might take you up on that; a quick guide would be super handy!

That's solid advice! You should push back if they don’t have proof.