|Does it have a Recovery Partition on it? If yes, or not sure, do this:|
Turn laptop on.
At Acer splash-screen, press and hold Alt + F10 keys together.
Recovery options should appear.
If nothing happens, you don't have a Recovery Partition.
You will have to contact Acer and order a recovery disc from them. You will have to pay for it. In UK, call Acer Customer Services on 08455 191 523