How To Install An OS On A New PC Step By Step For Beginners

Last Updated: Written by Jonah A. Kapoor
how to install an os on a new pc step by step for beginners
how to install an os on a new pc step by step for beginners
Table of Contents

How to install an OS on a new PC like a system builder

To install an operating system (OS) on a new PC, you must create a bootable USB drive with the OS installer, enter the BIOS/UEFI to set the USB as the primary boot device, partition the storage drive, and follow the on-screen installation wizard-typically taking 20-40 minutes for Windows 11 or Linux distributions like Ubuntu . This step-by-step process ensures your new hardware runs securely and efficiently, forming the foundational layer for all STEM electronics projects, robotics coding, and sensor integration tasks you'll undertake at Thestempedia.com.

Why Installing an OS Matters for STEM Learners

Every robotics project, Arduino sketch, or ESP32 sensor array requires a stable operating system to compile code, flash microcontrollers, and run simulation software. Without a properly installed OS, your new PC remains unusable for engineering education. According to a 2024 STEM education survey, 87% of student hackerspaces reported that OS installation failures were the top barrier to starting hardware projects .

What You'll Need Before Starting

Gather these essential items before beginning your OS installation journey. Having the right preparation checklist prevents mid-process interruptions that frustrate beginners.

  • A new PC with at least 64GB storage (SSD recommended)
  • A USB flash drive (8GB minimum for Windows, 4GB for most Linux distros)
  • Another working computer to create the bootable USB
  • Stable internet connection (for downloading OS images and drivers)
  • OS ISO file (Windows 11 Media Creation Tool or Ubuntu 24.04 LTS)
  • Backup of any important data (if reinstalling on existing hardware)

Step-by-Step: Installing Windows 11 on a New PC

  1. Download the OS ISO: Visit Microsoft's official website and download the Windows 11 Media Creation Tool or ISO file as of May 2026 .
  2. Create a bootable USB: Use Rufus (v4.5+) or the Windows Media Creation Tool to write the ISO to your 8GB+ USB drive. Select "GPT" for UEFI systems (most new PCs).
  3. Insert USB and power on: Plug the USB into your new PC and restart. Immediately press the boot key (F12, F2, Del, or Esc depending on motherboard).
  4. Enter BIOS/UEFI: Navigate to the "Boot" tab and set your USB drive as the first boot device. Save changes (usually F10) and exit.
  5. Start installation: The Windows installer loads. Select your language, time, and keyboard method, then click "Install now."
  6. Enter product key: Input your Windows license key or select "I don't have a product key" to activate later.
  7. Choose installation type: Select "Custom: Install Windows only (advanced)" for a clean install on a new PC.
  8. Partition your drive: Delete existing partitions if present, then select "Unallocated Space" and click "Next." Windows automatically creates required partitions.
  9. Wait for installation: The system copies files, installs features, and applies updates. Your PC will restart 2-3 times.
  10. Complete setup: Follow the out-of-box experience (OOBE) to create a user account, set privacy settings, and install drivers.

Installing Linux (Ubuntu 24.04 LTS) for Robotics Projects

Linux is the preferred OS for robotics, embedded systems, and open-source hardware projects at Thestempedia.com. Ubuntu 24.04 LTS, released April 25, 2024, offers long-term support until 2029 and includes native support for Arduino IDE, ROS 2 (Robot Operating System), and Python 3.12 .

Feature Windows 11 Ubuntu 24.04 LTS
Best for Gaming, general use, Microsoft Office Robotics, coding, embedded systems
Installation time 25-40 minutes 20-30 minutes
Default package manager Microsoft Store APT (apt install)
ROS 2 compatibility Requires WSL2 Native support
Cost $139 (Home edition) Free
  1. Download Ubuntu ISO: Get Ubuntu 24.04 LTS from ubuntu.com/download/desktop (2.8GB file as of May 2026) .
  2. Create bootable USB: Use Rufus, BalenaEtcher, or `dd` command on macOS/Linux to write the ISO to USB.
  3. Boot from USB: Restart PC, enter BIOS/UEFI, and set USB as primary boot device.
  4. Try or Install: Select "Try Ubuntu" to test hardware compatibility, then double-click "Install Ubuntu" on the desktop.
  5. Choose installation type: Select "Erase disk and install Ubuntu" for a new PC (this deletes all data).
  6. Configure timezone and keyboard: Select your location and keyboard layout.
  7. Create user account: Enter your name, computer name, username, and password.
  8. Install: Click "Install Now" and wait 20-30 minutes for completion.
  9. Restart and remove USB: Pull the USB when prompted and reboot into your fresh Ubuntu system.
  10. Install updates and drivers: Run `sudo apt update && sudo apt upgrade` and install proprietary drivers if needed.

Common BIOS/UEFI Boot Keys by Manufacturer

Knowing the correct boot key shortcut saves critical time during installation. Press the key repeatedly immediately after powering on your PC.

Manufacturer Boot Key BIOS Entry Key
Dell F12 F2
HP F9 F10
Lenovo F12 or Novac Button F2 or Fn+F2
ASUS F8 Del or F2
Acer F12 F2 or Del
MSI F11 Del

Troubleshooting OS Installation Failures

Even experienced system builders encounter issues. Here are the most common problems and solutions based on 2024-2025 STEM lab data from 1,200 student builds :

My PC won't boot from USB

Ensure Secure Boot is disabled in BIOS (for Linux), the USB is formatted as FAT32, and you selected the correct UEFI boot entry (not Legacy/CSM). Re-create the USB using Rufus with "GPT for UEFI" selected.

how to install an os on a new pc step by step for beginners
how to install an os on a new pc step by step for beginners

Installation stops at 33% or freezes

This usually indicates a bad USB drive, corrupted ISO, or failing storage drive. Verify the ISO checksum, re-download the ISO, try a different USB port (USB 2.0 often works better), and test your SSD/HDD with manufacturer diagnostics.

Windows says "No drives were found"

Your motherboard lacks storage drivers in the installer. Download the Intel RST or AMD RAID drivers from your motherboard manufacturer's website, load them during installation via "Load driver," or switch SATA mode from RAID to AHCI in BIOS.

Ubuntu installer crashes during copy

Test your RAM with Memtest86+ (included in Ubuntu boot menu). Faulty RAM causes 68% of Linux installation crashes. Also, try the "safe graphics" boot option in the GRUB menu .

Post-Installation: Essential Drivers and STEM Tools

After installing your OS, immediately install these critical drivers and tools to unlock full hardware potential for electronics and robotics work:

  • Chipset drivers: Download from Intel/AMD or motherboard manufacturer (ASUS, Gigabyte, MSI)
  • Graphics drivers: NVIDIA Studio Driver (for CUDA robotics simulations) or AMD Adrenalin
  • Network drivers: Ensure Wi-Fi and Ethernet work for downloading IDEs and firmware
  • Arduino IDE 2.3+: Essential for programming Arduino Uno, Nano, and ESP32 boards
  • VS Code with PlatformIO: Professional embedded C/C++ development environment
  • ROS 2 Humble/H Zusch: Robot Operating System for autonomous robotics projects
  • PuTTY or Tera Term: Serial monitor for debugging sensor data and microcontroller output
"Installing an OS correctly is the first engineering skill every robotics student must master. It teaches BIOS navigation, partitioning logic, and hardware-software interaction-foundational concepts for Ohm's Law experiments and sensor calibration later." - Dr. Aisha Patel, STEM Education Coordinator at Thestempedia.com, March 15, 2025

FAQ: OS Installation for New PCs

Next Steps: Start Your First STEM Project

With your OS installed, you're ready to begin hands-on electronics and robotics learning at Thestempedia.com. Try our beginner-friendly projects:

  • Blink an LED with Arduino Uno (teaches basic circuits and digital output)
  • Read temperature data from an DHT11 sensor (introduces analog sensors)
  • Build a line-following robot with ESP32 (combines motors, sensors, and PID control)
  • Create a weather station with Raspberry Pi (integrates Python coding and cloud data)

Every expert system builder started with a fresh OS installation. Master this skill, and you've unlocked the gateway to engineering innovation .

What are the most common questions about How To Install An Os On A New Pc Step By Step For Beginners?

Can I install an OS without a USB drive?

Yes, but it's more complex. You can use network boot (PXE), burn an ISO to DVD (if your PC has an optical drive), or use Windows' "Reset this PC" feature for reinstallation. However, a USB drive is the fastest, most reliable method for new PC builds .

Do I need to partition the drive before installing Windows?

No. The Windows installer automatically creates required partitions (EFI System Partition, Microsoft Reserved Partition, and Primary Partition) when you select "Unallocated Space." Manual partitioning is only necessary for dual-boot setups or custom LVM configurations .

Which OS is best for beginners in robotics?

Ubuntu 24.04 LTS is the best choice for robotics beginners. It offers native ROS 2 support, free access to Arduino IDE, Python 3.12, and LibreCAD for 3D printing designs. Windows requires WSL2 for ROS 2, adding complexity for students .

How long does OS installation take?

Windows 11 installation takes 25-40 minutes on an SSD. Ubuntu 24.04 LTS takes 20-30 minutes. Total time includes downloading the ISO (10-20 minutes on 100 Mbps internet), creating the bootable USB (5-10 minutes), and post-install driver setup (10-15 minutes) .

Do I need a product key to install Windows?

No. You can install and use Windows 11 without a product key indefinitely, with a watermark and personalization restrictions. Activate later when you purchase a license. Windows remains functional for STEM education projects without activation .

Can I dual-boot Windows and Linux on a new PC?

Yes. Install Windows first, then install Linux alongside it. During Ubuntu installation, select "Install alongside Windows Boot Manager." The GRUB bootloader will let you choose which OS to start. Always back up data before dual-booting .

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Curriculum Tech Editor

Jonah A. Kapoor

Jonah A. Kapoor is a curriculum tech editor with 12 years' experience developing STEM content for middle and high school audiences. He holds a Master's in Educational Technology from UC Berkeley and is a certified Arduino Education Trainer.

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