Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make your laptop last longer [title] Know where your laptop is at all times. [step] Be cautious about leaving the laptop unattended. Label it well in case of loss, misplacement or theft.

Ending1: All of these things can shock your battery, so you need to make sure it's in good working order. The biggest advantage to laptops that are almost fully charged is that they last roughly 7 months. Ending2: [substeps] It is not unheard of to see laptops that do not work dropped over due to fingerprints or a contaminant. [title] Create a backup of all your files as soon as possible. Ending3: [substeps] Label all parts of the laptop with your name. Put a sticky address label on the top of the laptop, inside, under the keyboard, both parts of the power cord, cd-rom/dvd-rom/floppy drives, and a usb drive. Ending4: [title] Take everything off the computer and reinstall the operating system if you are storing it. [title] Close the drive if you still have one.

Answer format: ending1/ending2/ending3/ending4