I have had this computer for almost 3 years now and have had no problems with the hardware before. I went to start my laptop earlier this week and it keeps loading without coming to my screen where I enter my password to go onto my desktop. It returns to an error message after trying to load with no success. The message says: Windows failed to start.A recent hardware or software change might be the cause. To fix the problem: Insert windows installation disk and restart. Then it asks me to choose a mode: Safe mode, etc. What's wrong with it and why am I getting this message? Any help would be highly appreciated. Thanks!