Back up any important files
Sign out of all accounts
Remove and wipe the hard drive or SSD
Factory reset the device if appropriate
Remove batteries and other detachable components
Recycle through an e-waste recycling center
Use manufacturer take-back programs
Donate only if the computer still works and is secure
Destroy storage drives if recycling requires it
Follow local e-waste disposal rules
Separate accessories, cables, and peripherals for proper recycling