How to Install Windows 11 on a Brand New PC Build

Your new PC just booted into UEFI and asked for an operating system. Welcome to the Windows installation step. The whole thing is well-documented and mostly automated, but Windows 11 has some specific requirements and quirks that surprise first-time builders. Here’s the full walkthrough.

What you need before you start

A USB flash drive (8GB or larger).
A working internet-connected computer to create the installer.
A Windows 11 product key, or an existing Microsoft account with a digital license (you can also install without a key and activate later).
About an hour of patience.

Check the Windows 11 requirements

Windows 11 has stricter requirements than Windows 10. Your build needs:

A compatible 64-bit CPU (basically anything 8th-gen Intel or newer, or Ryzen 2000 series or newer).
4GB RAM minimum (8GB+ realistically).
64GB storage.
TPM 2.0 (enabled in UEFI).
Secure Boot capability (also enabled in UEFI).
UEFI mode (not legacy BIOS).

If your CPU is recent, the TPM is in the CPU itself. On AMD it’s called fTPM, on Intel it’s called PTT. Both are usually enabled by default on modern boards, but if Windows complains during install, dive into UEFI and turn them on manually.

Create the installer USB

On a working computer:

Go to microsoft.com/software-download/windows11.
Download the “Create Windows 11 installation media” tool.
Run it. Accept the terms.
Choose “USB flash drive” as the destination.
Select your USB drive (it will be erased — back up anything important first).
Wait for the tool to download and copy Windows to the drive. Takes 15-30 minutes depending on internet speed.

Configure UEFI before installing

Boot your new PC and enter UEFI. Confirm:

RAM is running at the right speed (enable XMP/EXPO).
TPM (fTPM / PTT) is enabled.
Secure Boot is enabled.
UEFI boot mode is set (not legacy / CSM mode — disable CSM if it’s on).
Your boot drive is detected.

Boot from the installer USB

Plug the installer USB into your new PC. Either:

Press the boot menu key during startup (F12, F11, F10, or F8 depending on board) and select the USB drive.
Or set the USB as the first boot device in UEFI’s boot order.

You’ll see “Press any key to boot from USB…” — press a key. Windows Setup loads.

Walk through the installer

Pick your language, time format, and keyboard layout.
Click “Install now.”
Enter your product key, or click “I don’t have a product key” if you’ll activate later.
Choose your edition (Home or Pro — match what your key supports).
Accept the license.
Choose “Custom: Install Windows only (advanced)” — this is what you want for a fresh build.
On the disk selection screen, you’ll see your drives. Pick the M.2 NVMe SSD you want Windows installed on.
If the drive shows multiple partitions, delete them all (only safe if it’s truly a fresh drive!). Click “Next.”

Windows starts copying files and installing. The PC will reboot 1-3 times during this process. Don’t unplug the USB until the installer specifically asks you to remove it, or until you reach the out-of-box setup screens.

Out-of-box setup

After installation, Windows boots into the OOBE (Out-Of-Box Experience) — the colorful welcome screens. You’ll be asked to:

Confirm region and keyboard.
Connect to Wi-Fi (or Ethernet).
Sign in with a Microsoft account, or use a workaround for a local account.
Set up privacy settings (turn off as many telemetry options as you want).

Skipping the Microsoft account requirement

Windows 11 Home pushes you hard toward a Microsoft account. If you want a local account:

On the network screen, the trick varies by build — some versions accept Shift+F10 to open a command prompt, then typing OOBE\BYPASSNRO to enable a “continue with limited setup” option.
Or use an email like no@thankyou.com with a junk password to fail the sign-in repeatedly until it offers a local account option.
Or use Windows 11 Pro, which still allows local accounts more easily.

Microsoft keeps changing this. If one method doesn’t work in the current build, search for the latest workaround.

First boot into Windows

Once you reach the desktop, you’re not done. Several things still need to happen.

1. Install motherboard drivers

Go to your motherboard manufacturer’s website, look up your specific board, and download the drivers for:

Chipset (most important).
LAN / Ethernet.
Wi-Fi / Bluetooth (if applicable).
Audio.

Install the chipset driver first, then the others. Reboot when prompted.

2. Install GPU drivers

Don’t rely on Windows Update for your GPU driver — it’s usually outdated. Go to:

Nvidia: nvidia.com/drivers
AMD: amd.com/support
Intel: intel.com/content/www/us/en/support/products

Download the latest driver for your card. Install. Reboot.

3. Run Windows Update

Settings → Windows Update → Check for updates. There will be a lot. Install them all in batches, restarting as required.

4. Configure power settings

Settings → System → Power. For desktops:

Set sleep to “Never” or your preferred timeout.
Set “Power mode” to Best Performance if you want maximum FPS in games (though Balanced is fine for most users).

Bloatware to remove

Right-click the Start menu icons for anything you don’t want — Xbox apps, Solitaire, the Spotify shortcut, Microsoft Teams, etc. Choose Uninstall.

You can also use Settings → Apps → Installed apps to remove the bigger ones in one place.

Verify everything is working

Quick checks:

Task Manager → Performance: confirm RAM speed matches your kit’s rated speed.
Task Manager → Performance → CPU: confirm correct core count and base speed.
GPU-Z (free download): confirm your GPU is reporting full PCIe link speed.
CrystalDiskInfo: confirm your NVMe SSD is healthy and at full PCIe speed.

Finally, activate Windows

If you skipped the product key, you can add it in Settings → System → Activation. Or use the digital license tied to your Microsoft account.

That’s it. About an hour from booting the installer to a fully configured Windows 11 system. The trickiest parts are the early UEFI settings and getting fresh drivers — everything after that is just clicking through menus.