Power computer on. Hold Alt and keep pressing F10 at the Acer logo. You may need a password. If you have used Erecovery before you would have been asked to create a password.
If your first Erecovery the default password is 000000
If this fails, your recovery partition is probably corrupt, and you'll either need to contact Acer for recovery disks or use a Windows 7 installation disk
Yo Dodger46 - You the M.F'ing man or woman, this worked! No password needed Thanks.