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I recently replaced a ATI 6870 with a GTX 670 and am no longer able to access windows from my primary hard drive.

As Windows begins to load there is a blue screen which is rapidly gone and the computer restarts.

I was able to use a new hard drive and install Windows and the computer works fine which suggests there is no hardware problem. I installed the old hard drive and can access the files but cant boot from it.

Is this likely a video card driver problem? is there anyway I can change the drivers without booting from it? any ideas on any other possible problems that could be solved?

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1) What OS are you using? 2) Will it start in safe mode? –  CharlieRB May 25 '12 at 17:53
    
"Is this likely a video card driver problem? is there anyway I can change the drivers without booting from it?" The answer to both these questions is Yes –  Ramhound May 25 '12 at 18:48
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migrated from stackoverflow.com May 25 '12 at 17:42

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1 Answer

Press F8 rapidly before starting windows screen appear.

Choose Safe Mode with networking.

Download new driver of your GPU. And install it. Reboot your PC

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And uninstall the old drivers. –  Mark Sowul May 25 '12 at 20:18
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