Restore system to factory default
When recovery is complete the system will re-start and will need to complete the setup of Windows.
When setup is complete a process will clean up the recovery files.
If this doesn't work, you may order a set of recovery discs for your Acer model, using the following link:https://secure.tx.acer.com/RCDB/Main.aspx?brand=acerEnter the serial number provided at the back of your laptop, then click Submit. You will need to have a valid credit card to make the purchase, after which you may use the recovery discs provided to restore your laptop back to factory settings, resetting your password XXXXX the process.
Hope it helps.