Acer Aspire V7-481G - Manual (Page 21)

Recovery - 21
1. From Start, type 'Recovery' and then click Acer Recovery
Management in the list of apps.
2. Click Create Factory Default Backup. The Recovery Drive window
opens.
Make sure Copy contents from the recovery partition to the
recovery drive is selected. This provides the most complete and
safest recovery backup.
3. Plug in the USB drive then click Next.