Installing an operating system from a USB drive involves several steps, including creating a bootable USB drive and configuring your computer to boot from it. Here’s a step-by-step guide

byCOBRA TECH -
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Step 1: Choose Your Operating System

Decide which operating system (e.g., Windows, Linux, macOS, etc.) you want to install and download its installation image (ISO file) from the official website.

  • Windows: Microsoft Download Center
  • Linux: [Distro-specific site](e.g., Ubuntu, Fedora, Debian)
  • macOS: Requires macOS Recovery or a pre-existing macOS device for creating a bootable installer.


Step 2: Create a Bootable USB Drive

You’ll need a tool to write the ISO image to your USB drive and make it bootable.

  1. Format Your USB Drive:

    • Insert a USB drive (minimum size depends on the OS, usually 8GB or larger).
    • Back up data on the USB, as this process erases all data.

  2. Download a Tool for Bootable USB Creation:

    • Windows: Use tools like Rufus, Balena Etcher, or the official Microsoft Media Creation Tool.
    • Linux: Use dd command, Balena Etcher, or UNetbootin.
    • macOS: Use createinstallmedia in Terminal (for macOS installations) or Balena Etcher.

  3. Write the ISO to the USB:

    • Open the tool and select the ISO file.
    • Select the USB drive.
    • Start the process. This may take several minutes.

Step 3: Configure Your Computer to Boot from USB

  1. Access BIOS/UEFI:

    • Restart your computer and enter BIOS/UEFI settings by pressing a key during startup (usually F2, F12, Delete, or Esc). Look for a message like “Press [key] to enter setup.”
    • Alternatively, search for instructions specific to your computer model.

  2. Set Boot Priority:

    • Navigate to the "Boot" menu using your keyboard.
    • Move the USB drive to the top of the boot priority list.
    • Save changes and exit (usually F10).

Step 4: Boot from the USB and Install the OS

  1. Start Installation:

    • Insert the bootable USB into your computer.
    • Restart the computer. It should now boot from the USB.
    • If it doesn’t, manually select the USB as the boot device by pressing the boot menu key (e.g., F12) during startup.

  2. Follow the On-Screen Instructions:

    • Choose language, keyboard layout, and other settings.
    • Partition your drive if required (this will erase the current OS and data unless you’re dual-booting).
    • Proceed with the installation.

  3. Complete Installation:

    • Wait for the installation to complete.
    • Remove the USB drive when prompted, and restart your system.

Step 5: Post-Installation Setup

  • Install necessary drivers and updates (especially for Windows).
  • Configure system settings and restore data from backups.

Additional Notes

  • Secure Boot: If installation fails, you may need to disable Secure Boot in BIOS/UEFI.
  • Dual Booting: Be careful with partitioning if you’re installing alongside another OS.
  • MacOS Installation: macOS installation on non-Apple hardware (Hackintosh) requires additional steps and is more complex.

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