As you are running Factory Recovery, you should have made your REcovery Disk set in case it failed when run from the Recovery Partition on the HD.
There are a few things you can try. Failure at this stage of install can be a driver
hanging during setup. Try using this method to enter the Device Manager during install to uninstall any drivers
showing in error - in particular the Display driver is the usual culprit. This may let the install complete so you can update the driver from the desktop. Device Manager - Access During Windows 7 Installation
If this fails, you'll need to order your Recovery Disk set from Acer Tech Support, or find a Windows 7 installer for your version to clean reinstall using the Product Key on the COA sticker: Reinstalling Windows 7