Is there a reliable way to permanently erase files? | Forum

I’m looking for a reliable way to erase files permanently before donating a couple of old computers. I’ve heard that even if you delete files or format the drive, the data can still be recovered. That’s definitely not something I’m comfortable with. I tried SysTools Data Wipe Software, and it did a great job. It’s simple to use and ensures the data is gone for good. Has anyone else tried this, or are there other methods you’d recommend for securely erasing files?