Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to back up files to onedrive [title] Open onedrive. [step] Press the windows key on your keyboard and type in " onedrive, " and the top result should be what you are looking for. Hit the enter to open onedrive.

Ending1: [substeps] Onedrive is a free program that automatically reviews and examines incoming files. Onedrive automatically reviews your files, and then you can select to back them up. Ending2: This installer allows you to back up your files to onedrive using a synchronization feature. Tap the back button to back up your compiler! [title] Enter the email address and password associated with your compiler. Ending3: [title] Add files and/or folders to your onedrive folder. [step] The window that is now open on your desktop should be the onedrive sync folder. Ending4: [title] Log in to your onedrive account. [step] Type in your registered facebook login information (username and password), and hit the enter to sign in.

Answer format: ending1/ending2/ending3/ending4