What is how to install windows 10 from usb?

Here's how to install Windows 10 from a USB drive:

1. Prerequisites:

   • A USB drive with at least 8 GB of storage.
   • A Windows 10 ISO file (available from Microsoft).
   • A tool like Rufus to create a bootable USB drive.

2. Create a Bootable USB Drive:

   • Download Rufus.
   • Open Rufus.
   • Select your USB drive in the "Device" dropdown.
   • Click the "Select" button and choose your Windows 10 ISO file.
   • Leave other settings as default (usually UEFI/GPT for newer systems, or BIOS/MBR for older ones - Rufus usually detects this automatically).
   • Click "Start" and wait for the process to complete. Warning: This will erase all data on the USB drive.

3. Boot from the USB Drive:

   • Restart your computer.
   • Enter the BIOS/UEFI settings. This is usually done by pressing a key like Delete, F2, F12, Esc, or another key specified by your computer manufacturer during startup. Look for a message on the screen during startup that tells you which key to press.
   • In the BIOS/UEFI settings, find the "Boot Order" or "Boot Priority" option.
   • Change the boot order to prioritize booting from the USB drive.
   • Save the changes and exit the BIOS/UEFI settings. Your computer should restart and boot from the USB drive.

4. Install Windows 10:

   • The Windows 10 setup program will start.
   • Select your language, time zone, and keyboard layout.
   • Click "Install Now."
   • Enter your product key if you have one. If you're reinstalling Windows, you can skip this step if you previously activated Windows on that machine.
   • Select the version of Windows 10 you're licensed for.
   • Accept the license agreement.
   • Choose the "Custom: Install Windows only (advanced)" option for a clean install.
   • Select the partition where you want to install Windows. If you're doing a clean install, you may need to delete existing partitions on the drive. Warning: This will erase all data on the selected drive.
   • Windows will install, restarting several times.
   • Follow the on-screen instructions to configure Windows.

5. Post-Installation:

   • Install drivers for your hardware (graphics card, network adapter, etc.).
   • Activate Windows.
   • Install necessary software and updates.