So the last snow storm we had 10 days ago we had several power outages and my hard drive got fried during a power outage or surge. I have since installed a battery power supply and surge protector but trying to rebuild all my computer programs into new hard drive. What is the best way to restore excel and word? I think I had an older copy of office student and teacher addition and I cannot find the download as it was probably several years old  Is that still available or is there a better option for excel and word. Also need a better Adobe PDF program on this computer.