New
#11
Packard bell imedia s3720
Have you tried pressing <Alt+F10> at boot up, to goto the Acer eRecovery Management.
Acer Support: Frequently Asked Questions list for How to use Acer eRecovery
You can Order Acer recovery disks from here:
https://secure.tx.acer.com/RCDB/Main.aspx?brand=acer
From your manual: