Windows Boot Manager
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1. Insert your Windows installation disc and restart your computer.
2. Choose your lenguage settings, and then click 'Next'.
Click 'Repair your computer'
If you do not have this disc, contac your system administrator or computer manufacturer for assistance.
Info: The Boot Configuration Data file doesn't contain valid information for an operating system.
So I try to follow this http://support.micro...om/kb/927391/en Follow step 2, but nothing happened, because when I start the cmd and follow the step, when I write 'bcedit /export C:\BCDBackup' or 'Bootrec /RebuildBcd' the error message is: 'The store export operantion has failed. The volume for a file has been externally altered so that the opened file is no longer valid.'
Anyone can help me please? I'm desperate . thanks again!