Acer Aspire M3-581TG - Manual (Page 39)

Recovery - 37
7. Unplug the USB drive and label it clearly.
Important: Write a unique, descriptive label on the backup, such
as 'Windows Recovery Backup'. Make sure you keep the backup
in a safe place that you will remember.
Creating a drivers and applications backup
To create a Drivers and Applications Backup, that contains the factory-
loaded software and drivers needed by your computer, you may use either
a USB storage drive or, if your computer features a DVD recorder, one or
more blank recordable DVDs.