After running a Windows 7 setup through setup disc it get stuck on Expanding file. Then it reboots on it own and give me boot manager missing error. I had started the setup and went out. When I came backup I saw the issue. I tried the setup once again. It takes hours to complete but at the end I am getting boot manager missing error. What should I do to fix the problem. I am using a new Windows 7 dvd for installation.
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