Hello everyone. My laptop crashed the other day after a Windows update. To make a long story short it would not boot up. I tried several things to no avail. System restore disc did not work. At this point i thought the hard drive was fried. Finally i stuck the the Windows 7 companion disk and got the system to boot I can tell all my files are there somewhere due to amount of memory taking up on the hard drive. Anyways my main problem it is now asking for the product key although i have 29 days which unfortunately i cannot find. Laptop in question is a Lenovo G550. Where do i go from here? Do I have to purchase a new key? Ive been using the laptop since and it seems to be working properly as far as i can tell.