You can use the Boot tab of MSConfig to find out if the computer is using a dual boot configuration.
Go to msconfig in the run command and deselect it
In run dialog box type msconfig start // run // msconfig
MSCONFIG allows you to disable tasks that are not needed that start when you get into windows. By doing this you decrease the amount of processing needed to do important tasks thus allowing your computer to run smoother. You can also access boot options from MSCONFIG as well allowing you to go into safe mode the next time you restart as an example.
Boot setting configuration refers to the settings that control the process of starting up a computer. This includes options such as the sequence in which devices are checked for an operating system, the boot order of drives, and the choice of booting from a CD, USB, or hard drive. These settings are typically accessed through the computer's BIOS or UEFI interface.
boot to Last Known Good Configuration
1. Switch ON the computer. 2. Press F2 3. Select the drive you're using to boot.
boot to Last Known Good Configuration
i need to reboot my computer lost all configuration and lost CD
That would be using the menu system to restart the computer. A shut down is a cool boot.
Warm
If you restart it in the menu with the mouse or keyboard then it's a "Soft" or normal reboot. If you have to restart with the power button (or restart button on older Macs) on the side of computer case then its a "Hard" reboot.
what is computer boot sector