How to Fix: If I remove the ROM chip(s) and the hard drive from a desktop PC, there's no more no more personal data left on the desktop PC, right? No logins, no passwords, no banking and credit card info, right? If not, what do I need to remove from the desktop PC, to remove all that data?

Removing the ROM chip(s) and hard drive is not enough to completely erase all personal data from a desktop PC.

🛠️ Step-by-Step Verified Fix:

1. Step 1: Disable and remove all external devices: Unplug any USB drives, SD cards, or other removable storage devices to prevent any remaining data from being stored on the desktop PC.
2. Step 2: Erase the BIOS/UEFI settings: Use a tool like UBUNTU's BIOS eraser to reset the BIOS/UEFI settings to their default values, which will remove any stored login credentials and other sensitive information.
3. Step 3: Wipe the hard drive: Use a tool like Disk Utility or DBAN (Darik's Boot and Nuke) to completely wipe the hard drive, removing all data, including operating system files, user data, and any other information.
4. Step 4: Remove any remaining firmware: Use a tool like UBUNTU's BIOS eraser to remove any remaining firmware, including the UEFI firmware.
5. Step 5: Physically destroy the hard drive (optional): If you want to ensure that all data is completely erased and cannot be recovered, physically destroy the hard drive using a degaussing machine or by crushing it with pliers.