Facing locking problem with Windows 8

I have installed Windows 8 Release Preview. I am facing the problem that the Windows 8 gets locked automatically in few minutes from the time I logged into it. The windows does not close. Then the system halts. I can move the mouse over the screen anywhere but unable to use the system. If I close the current window then it starts to halt there. I have tried Ctrl+Alt+Delete but could not find. I don't want to go back with windows 7. Can anyone give the solution for this problem. Quick reply is appreciable.

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It seems that your BIOS is not compatible with your operating system so you need to update it. Download a latest version for BIOS like V.17. Mostly you will have V.14 which is only compatible with Windows Vista. So download a fresh BIOS V.17. Once you downloaded, Configure it with your system. Then try windows 8 Release Preview then the problem will be solved. Also check whether you have Windows 8 for 32-bit or 64-bit that should support your board too.

It seems that your BIOS is not compatible with your operating system so you need to update it. Download a latest version for BIOS like V.17. Mostly you will have V.14 which is only compatible with Windows Vista. So download a fresh BIOS V.17. Once you downloaded, Configure it with your system. Then try windows 8 Release Preview then the problem will be solved. Also check whether you have Windows 8 for 32-bit or 64-bit that should support your board too.