If there is nothing you need on the laptop, a factory reset should be simple. First, go herehttp://www.memtest86.com/memtest86-4.0a.iso.zip
Download the ISO and burn it to a disk. Boot the laptop with the disk and run a RAM test. If it gives any errors, you need to replace the RAM. Talk to Acer if it is under warranty.
If it passes, run the recovery software by pressing Alt+F10 when the laptop is first booting, when it says Acer on the screen. It will likely wipe the drive, so make sure anything you need is not saved on the laptop first.