The hard drive on our Acer netbook went bad for the second time after our warranty expired. I've paid to replace the hard drive,but now I have to reinstall the operating system. According to our computer expert, I should have gotten some type of reinstallation software when I purchased the netbook, but I don't believe I did. I did read on the Acer website that their netbooks have eRecovery management, but I think that only works with the factory installed hard drive. How do I get the operating system reinstalled when I have had to replace the hard drive? Do I really have to purchase it again? We have not even owned this netbook for two years and this is the second time we've replaced the hard drive!