Installing a new operating system can feel like a significant undertaking, especially when setting up a brand-new computer. This guide will walk you through the process of installing Windows 10 on a new PC, ensuring a smooth and successful setup. While the core principles remain consistent, minor variations might exist depending on your specific hardware and motherboard.
Preparing for the Installation
Before you begin the actual installation, thorough preparation is key to a seamless experience. This involves ensuring you have all the necessary components, the installation media, and a basic understanding of your PC’s boot order.

Gathering Your Resources
The most crucial element is the Windows 10 installation media. You can create this yourself using Microsoft’s Media Creation Tool, which allows you to download the latest version of Windows 10 and create a bootable USB drive or DVD.
- USB Flash Drive: A USB drive with at least 8GB of storage is recommended. Ensure it’s empty, as the process will format it.
- Windows 10 ISO File or Media Creation Tool: Download the Media Creation Tool from the official Microsoft website. It will guide you through downloading the ISO and creating the bootable media.
- Product Key (Optional but Recommended): While you can install Windows 10 without a product key and activate it later, having it on hand will expedite the process.
- Internet Connection: A stable internet connection is necessary for downloading the Media Creation Tool and, post-installation, for updates and driver downloads.
- Backup of Existing Data (If Applicable): If you are migrating from an old drive or have any data you wish to preserve, ensure it is backed up to an external drive or cloud storage. For a new PC, this step is less critical unless you’re repurposing components with pre-existing data.
Understanding BIOS/UEFI Settings
Your PC’s BIOS (Basic Input/Output System) or UEFI (Unified Extensible Firmware Interface) is the first software that runs when you turn on your computer. It’s responsible for initializing hardware and booting the operating system. You’ll need to access these settings to tell your PC to boot from your Windows 10 installation media.
- Accessing BIOS/UEFI: Typically, you’ll press a specific key repeatedly immediately after powering on your PC. Common keys include DEL, F2, F10, F12, or ESC. Your motherboard’s manual or a quick search for your specific model should confirm the correct key.
- Boot Order: Within the BIOS/UEFI settings, you’ll find a “Boot Order” or “Boot Priority” section. You need to set your USB drive or DVD drive (whichever you used for the installation media) as the first boot device. This ensures your PC attempts to boot from the Windows installer before trying to boot from any installed storage devices.
- Secure Boot (UEFI): If your system uses UEFI, you might encounter a “Secure Boot” option. For a standard Windows 10 installation, it’s usually best to leave this enabled unless you encounter specific issues. If you plan to install an older operating system or a different Linux distribution, you might need to disable it.
The Installation Process
With your preparation complete, you’re ready to begin the actual Windows 10 installation. This phase involves booting from your installation media and following the on-screen prompts.
Booting from Installation Media
- Insert Media: Insert your bootable USB drive or DVD into the new PC.
- Power On: Turn on your PC.
- Access BIOS/UEFI: As soon as the PC powers on, repeatedly press the designated key (e.g., DEL, F2) to enter the BIOS/UEFI setup.
- Configure Boot Order: Navigate to the boot settings and ensure your USB drive or DVD drive is listed as the primary boot device. Save your changes and exit the BIOS/UEFI. The PC will restart.
- Booting into Installer: If you’ve configured the boot order correctly, the PC will now boot from your Windows 10 installation media. You’ll see a prompt like “Press any key to boot from CD or DVD…” or a similar message for USB. Press any key to proceed.
Initial Setup Screens
Once the installer loads, you’ll be presented with a series of setup screens.
- Language, Time, and Keyboard: Select your preferred language, time and currency format, and keyboard input method. Click “Next.”
- Install Now: On the next screen, click the prominent “Install now” button.
- Product Key: You’ll be prompted to enter your Windows 10 product key.
- If you have it, enter it.
- If you don’t have it yet or plan to activate later, click “I don’t have a product key.” You can activate Windows later by going to Settings > Update & Security > Activation.
- Edition Selection: Choose the edition of Windows 10 you wish to install (e.g., Windows 10 Home, Windows 10 Pro). Ensure this matches the product key you have, if applicable. Click “Next.”
- License Terms: Read and accept the Microsoft license terms. Click “Next.”

Installation Type: Custom Installation
This is a critical step for a new PC.
- Choose Installation Type: You’ll be asked whether you want to “Upgrade” or “Custom” install. For a new PC with no prior operating system, always choose “Custom: Install Windows only (advanced).”
Disk Partitioning and Formatting
This is where you tell Windows where to install itself. For a new PC, this is generally straightforward.
- Drive Selection: You’ll see a list of available drives and partitions. Since this is a new PC, your primary drive (usually labeled “Drive 0”) will likely appear as “Unallocated Space.”
- Creating New Partitions:
- Select the “Unallocated Space” on your primary drive.
- Click the “New” button.
- Windows will typically suggest a size for a primary partition (which is what you want for the OS). You can use the maximum available space for a single partition, or if you intend to create separate partitions for the OS and data, you can specify a smaller size here and create additional partitions later. For simplicity on a new build, allotting the entire space is common.
- Click “Apply.” Windows will automatically create several partitions for system files (System Reserved, Recovery, etc.) and your main Windows partition.
- Formatting (If Necessary): If you are installing on a drive that has been previously used and formatted, you may see existing partitions. In such cases, you might need to delete existing partitions (ensure you’ve backed up any data first!) and then create new ones as described above. For a truly new drive, the “Unallocated Space” and “New” option is the correct path.
- Selecting the Primary Partition: Once partitions are created, select the largest partition (this will be your main Windows partition) and click “Next.”
The Installation Progress
Windows will now begin copying files, installing features and updates, and completing the installation. This process can take some time, and your PC will restart multiple times.
- Copying Files: Windows copies the necessary files from your installation media to your hard drive.
- Installing Features and Updates: The installer configures Windows and applies initial updates.
- Restarting: The PC will restart automatically during this process. Crucially, after the first restart, you may need to remove your USB drive or ensure your BIOS/UEFI is no longer set to boot from it. If you don’t, the PC might boot back into the installer. If it does, simply restart and let it boot from the hard drive.
Initial Setup and Configuration
After the core installation is complete and the PC boots into Windows for the first time, you’ll go through the out-of-box experience (OOBE) to set up your user account and preferences.
Setting Up Windows 10
- Region and Keyboard Layout: Confirm your region and keyboard layout.
- Network Connection: Connect to your Wi-Fi network or plug in an Ethernet cable. This is important for updates and account setup.
- Account Setup:
- Microsoft Account: You’ll be prompted to sign in with or create a Microsoft account. This integrates with OneDrive, the Microsoft Store, and other services.
- Local Account (Optional): If you prefer not to use a Microsoft account, look for an option like “Offline account” or “Skip this step” (which might be hidden or require a bit of clicking around). You can then create a traditional local user account.
- Create a PIN: For easier logins with your Microsoft or local account, you’ll be asked to create a PIN.
- Privacy Settings: Review and adjust your privacy settings for location, diagnostics, tailored experiences, and more. It’s recommended to read through these and choose what you’re comfortable with.
- Cortana: You’ll have the option to set up Cortana, Microsoft’s digital assistant.
- Completion: Windows will finalize your settings, which may take a few minutes.

Post-Installation Tasks
Once you reach the Windows 10 desktop, the essential installation is complete. However, there are crucial follow-up steps to ensure your PC is fully functional and secure.
- Windows Updates: This is the most critical step.
- Go to Settings > Update & Security > Windows Update.
- Click “Check for updates.”
- Install all available updates. Your PC will likely need to restart multiple times. Continue checking for updates until no more are found. This ensures you have the latest security patches and performance improvements.
- Driver Installation: While Windows 10 often installs generic drivers automatically, it’s highly recommended to install the latest drivers directly from your hardware manufacturers’ websites.
- Motherboard Drivers: Visit the motherboard manufacturer’s support page for your specific model. Download and install drivers for chipset, audio, LAN (Ethernet), and any other onboard devices.
- Graphics Card Drivers: If you have a dedicated graphics card (NVIDIA, AMD, Intel), visit their respective websites to download and install the latest drivers. This is crucial for optimal performance in games and graphics-intensive applications.
- Other Peripherals: Install drivers for any other specific hardware you’ve installed, such as Wi-Fi adapters, printers, or scanners.
- Activation: If you skipped product key entry during installation, now is the time to activate Windows.
- Go to Settings > Update & Security > Activation.
- Enter your product key or follow the on-screen instructions if you’re troubleshooting an activation issue.
- Install Essential Software: Install your preferred web browser (Chrome, Firefox, etc.), antivirus software (if you’re not using Windows Defender), productivity suites (Microsoft Office, LibreOffice), and any other applications you need.
- Personalization: Customize your desktop background, theme, and other settings to your liking.
By following these steps meticulously, you can ensure a clean and successful installation of Windows 10 on your new PC, setting a solid foundation for its future use.
