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While loading display driver (intel graphics display driver), I get an error "Severe Problem" / "Access Denied" and display driver is not loaded.
  Please browse net protector CD and run wnunlock.exe.

After running this exe, only a black windows opens and closes immediately.

After this now install the display driver.
It will load correctly

You may also download this utility from : www.antiviruswala.com/wnunlock.exe (copy paste to your browser)
 Question Answer