Shut down the device and unplug it
Remove the battery if possible
Dampen a soft microfiber cloth with a small amount of water or 70% isopropyl alcohol
Wipe the touchpad gently
Use a cotton swab for edges and corners
Dry the touchpad with a clean, dry microfiber cloth
Avoid spraying liquid directly onto the touchpad
Avoid using abrasive cloths, paper towels, or harsh cleaners
Let the touchpad dry completely before turning the device back on