Booting: When we start our Computer then there is an operation that is performed automatically by the Computer which is also called as Booting. In the Booting, System will check all the hardware and software that are installed or Attached to the System and this will also load all the files that are needed for running a system.
In the Booting Process, all the files that are stored on the ROM Chip will also be Loaded for Running the System. In the Booting Process the System will read all the information from the Files that are Stored into the ROM Chip and the ROM chip will read all the instructions that are stored in these Files. After the Booting of the System, this will automatically display all the information on the System. The Instructions that are necessary to Start the System will be read at the Time of Booting.
There are two types of Booting
1) Warm Booting: when the System Starts from the Starting or from the initial State Means when we Start our System this is called warm Booting. In the Warm Booting, the System will be Started from its beginning State means, first of all, the user will press the Power Button, then this will read all the instructions from the ROM and the Operating System will b Automatically get loaded into the System.
2) Cold Booting: The Cold Booting is that in which System Automatically Starts when we are Running the System, For Example, due to Light Fluctuation the system will Automatically Restart So that the Chances Damaging of the system are More. and the System will no start from its initial State So May Some Files will b Damaged because they are not Properly Stored in the System.
How to Boot Your Computer From a Disc or USB Drive
Usually, you boot your computer from its main hard drive, which contains your operating system (like Windows). But occasionally, you may need to boot from a CD, DVD, or USB drive—say, if you’re running a recovery program, or testing out a new operating system like Linux.
In order to do this, you need to tell your computer’s BIOS to load the operating system from a different place than usual. You can do this in two ways: By changing the boot order in the BIOS or UEFI firmware (so it attempts to boot from CD or USB every time), or by accessing a boot menu on startup (so it’ll only boot from CD or USB that one time). We’ll show you both methods in this guide. The first is permanent until you change it again, but should exist on every computer. The latter method is faster, but may not exist on every machine.
NOTE: This process will look different on each computer. The instructions here will guide you through the process, but the screenshots won’t look exactly the same.
How to Change Your Computer’s Boot Order
The boot order is controlled in your computer’s BIOS or UEFI firmware, depending on how new your computer is. To access the BIOS, you’ll need to restart your computer and press a specific key at the start of the boot process. This key is generally displayed on-screen during the boot process. For example, you may see a message that says “Press <DEL”> to enter setup” or “Press F2 to access the BIOS.” Press the required key at the correct time and your computer’s BIOS will appear.
While Delete and F2 are probably the most common keys, your computer may require another key, such as F1, Escape, or Ctrl+Alt+Escape. If you don’t see the required key on-screen, consult your computer’s manual or search for your computer’s model name and “bios key” on Google. (If you built your own computer, consult the motherboard’s manual instead.)On a PC with UEFI firmware—which most newer PCs that came with Windows 8 or 10 will have—you may not be able to press a key at boot to access this menu. Instead, you’ll first need to boot into Windows. Press and hold the “Shift” key as you click the “Restart” option in the Start menu or on the sign-in screen. Windows will reboot into a special boot options menu. Click Troubleshoot > Advanced Options > UEFI Firmware Settings on this menu screen to access your computer’s UEFI settings screen.
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