I have a computer that was running windows vista. I replaced the hard drive with one that was in another computer that the power supply failed on. This other one has windows 7 operating system installed but it wouldn't boot. The hard drive was fine before the power supply failed. It begins to boot then ask if i want to run windows repair. I select the repair option but it still won't boot. What could the problem be?
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As the Hard Drive came from a different computer it was initially installed on different hardware and when it now comes to boot it no longer has the hardware that is was initially installed on so it can not boot. You need to reinstall Windows 7 so it will work with the new hardware.
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Computer will not boot after i change hard drive.