2) During installation Windows creates a hidden 100 MB partition on disk where the Windows Boot Manager placed. BIOS actually search for Boot Manager, and then Boot Manager starts Windows. So do not delete this partition, disk became unbootable. Just start the Computer Management util from Control Panel and on Disk management select this D:, right-click and select like Change drive letter and remove letter completely to hide it from MyComputer screen.
I just set up as you advise and that 100MB partition disappeared. Thanks for your help.
But, I can't solve another problem. Can you advise me about another question?