I have an Acer Aspire desktop computer running Windows Vista. My problem is that every time I start it, I get the message. Windows failed to restart, a recent hardware or software might be the cause. To fix the problem, 1.Insert your Windows installation disk and restart the computer. 2. Choose your language settings then click next. 3 Click repair your computer. Other options I get are. 1. If the power interrupted during setup, choose start Windows normally. (Use arrow key to select your choice) Safe Mode Safe mode with Networking Safe mode with commend prompt Last known good configuration (Advanced) Start Windows normally The problem with the first option it gives me is that I don't have a Windows Vista disk. When I choose one of the other options, like Safe Mode or Start Windows normally, the computer just restarts and goes back to same message. If I do nothing, it restarts every 24 seconds and goes back to the same message. This problem started when some in my household turned off the computer using the power button, while Windows Vista was updating. I would appreciate any help anyone can offer.