I have an Acer 5740. I had to download Canon printer drivers at work, later my laptop froze up and needed to be hard shutdown. It restarted to needing repair page which then took 45 mins to come up. It has been running repair for over 10 hours now. What now? I can't cancel the repair. It says it's repair disk error. Do I hard shut down? I'm not computer savy so I'm really in the dark here.