: Open Rufus, select your USB drive and the ISO file, choose the "Standard Windows installation" option, and click "Start" [6]. 3. BIOS/Boot Menu Configuration Insert the USB into the target PC and restart it.

: Follow the on-screen instructions for language and region. If asked for a product key, you can select "I don't have a product key" to continue the installation and activate later [6]. 5. Activation and Security

: Immediately run Windows Update after installation to ensure you have the latest security patches [1].

: To activate legally, you should use a product key found on your PC's packaging or linked to your Microsoft Account [18].

An AIO (All-in-One) ISO typically contains multiple editions of Windows 10 (e.g., Home, Pro, Education, Enterprise) in a single file [15, 6].

: You can download official Windows 10 disc images directly from Microsoft or use the Media Creation Tool to generate a custom ISO [5, 8].

: Some AIO packages include scripts like "KMS VL ALL" for activation [21]. Be aware that these often require disabling antivirus software, which may expose your system to security risks [9].