Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to format a computer [title] Backup your data. [step] When you format a computer, you will lose all of your files and data. The programs can't be backed up; they will need to be reinstalled.

Ending1: Whenever the system runs out of data, the programs reload. This makes it so your system cannot download new drivers. Ending2: If you have a usb charger charger, you can just move it back to your hard drive or usb drive, and you're good to go. Otherwise, it might become obsolete or lose a valuable system. Ending3: Any files-including documents, music, pictures, and videos-that you want to save need to be copied to a backup location. [substeps] You can use dvds, cds, external hard drives, flash drives, or the cloud, depending on how much data you have to backup. Ending4: Certain programs, like icloud and apple games, can only be backed up. If you have ssl parters, these can usually be backed up and saved to a usb drive.

Answer format: ending1/ending2/ending3/ending4