How do I delete everything off my old hard drive on Windows PC?

To delete everything off your old hard drive on a Windows PC and make sure it’s completely wiped, here are three methods:

1. Using Windows Disk Management: You can use Disk Management to format the drive. Just right-click on the drive, select "Format," and choose the option to delete everything off your old hard drive. While this removes data from the drive, it doesn't make it unrecoverable; the data can still be recovered with special tools.
2. Using Command Prompt (Clean Command): If you want to take it further, open Command Prompt as Administrator and type diskpart, then run the command list disk to see all the disks. Next, use select disk X (replace X with the disk number of your old drive) and then clean. This wipes the drive clean, but it's still not the most secure method.
3. Factory Reset via BIOS: For some drives, you can use the BIOS menu to perform a secure erase, which is the most secure method. This wipes the drive and ensures nothing is recoverable. Make sure to check the drive’s manual for specific steps.

Keep in mind, if you need to make sure everything is deleted off your old hard drive permanently, especially sensitive information, you’ll want to consider doing a few passes to overwrite the data. That way, even with specialized recovery tools, your data won’t be retrievable.

Hope this helps, and let me know if you need more guidance!