How to Install Windows 11 on Your Computer

Windows 11 installation requires a compatible computer, a USB drive or DVD, and about 20 to 30 minutes of your time

Installing Windows 11 means replacing your current operating system with a fresh copy of Windows 11. You can do this by booting your computer from a USB drive or DVD that contains the Windows 11 installation files, then following the on-screen prompts to format your drive and install the system. The process wipes everything on your computer, so back up your files first.

Before you start, check whether your computer meets Windows 11's hardware requirements. Your processor must be on Microsoft's official supported list (most Intel processors from the 8th generation onward and AMD Ryzen 2000-series and newer may have access to, but some older chips do not). You need at least 4 GB of RAM, 64 GB of storage space, and a UEFI firmware with Secure Boot capability. You can check your current system by opening Settings, selecting System, then About — it will show your processor model and RAM amount.

Key Takeaways

Windows 11 installation erases everything on your computer, so back up all your files to an external drive or cloud storage before you begin.
Your processor must be on Microsoft's official supported list; you can verify this by checking your processor model in Settings and searching the Microsoft documentation.
You need a USB drive with at least 8 GB of free space or a blank DVD to create the installation media.
The installation process takes 20 to 30 minutes and requires you to restart your computer several times.
After installation, you will need to reinstall your programs and restore your files from your backup.

Back up your files before you start

Installing Windows 11 erases your entire hard drive. Every file, program, and setting disappears. Before you touch anything, copy all your important files to an external hard drive, USB drive, or cloud storage service like OneDrive, Google Drive, or Dropbox.

Focus on documents, photos, videos, and any work files you cannot replace. If you have programs you paid for (like Microsoft Office or Adobe Creative Suite), note down your license keys or account information now — you will need to reinstall them after Windows 11 is running. If you use Firefox or Chrome, both browsers can sync your bookmarks and passwords to your account, so you can restore them after installation.

Check your processor against Microsoft's supported list

Windows 11 has strict processor requirements. Not every computer can run it, even if it is relatively new. Open Settings on your current computer, select System, then About. Write down your processor name exactly as it appears (for example, "Intel Core i7-10700K" or "AMD Ryzen 5 5600X").

Go to Microsoft's official Windows 11 system requirements page and search for your processor in the supported CPU list. If your processor is not listed, Windows 11 will not install, and you should stop here. If it is listed, continue to the next step. Your computer also needs at least 4 GB of RAM (8 GB is better) and 64 GB of free storage space.

Create installation media on a USB drive or DVD

You need a way to tell your computer to start from Windows 11 installation files instead of your current hard drive. The easiest method is to use a USB drive. Get a USB drive with at least 8 GB of free space — it will be erased during this process, so use one that does not hold files you need.

On a working computer (yours or a friend's), go to Microsoft's Windows 11 download page. Click "Download Now" under "Windows 11 Installation Media." This downloads a tool called the Windows 11 Media Creation Tool. Run this tool, select "Create installation media for another PC," choose your USB drive from the list, and let it download and prepare the files. This takes 10 to 20 minutes depending on your internet speed. If you prefer to use a DVD instead, the Media Creation Tool can burn to a blank DVD — just select that option and have a blank DVD ready.

Insert the USB drive and restart your computer

Plug the USB drive into your computer. Restart your computer and watch the screen carefully as it starts up. You will see a message like "Press F2 to enter Setup" or "Press Delete to enter BIOS" — the exact key varies by manufacturer. Press that key repeatedly as soon as you see it. This takes you to your computer's boot menu or BIOS settings.

In the boot menu, look for an option to change the boot order or select a temporary boot device. Find your USB drive in the list (it may be labeled by brand name, like "Kingston" or "SanDisk," or as "USB Device"). Select it and press Enter. Your computer will restart and load the Windows 11 installation screen. If you do not see a boot menu, restart again and try a different key — common options are F12, Esc, or F9, depending on whether your computer is a Dell, HP, Lenovo, or other brand.

Follow the Windows 11 installation wizard

Once the Windows 11 installation screen appears, select your language, time zone, and keyboard layout. Click "Next," then "Install Now." You will be asked to enter a Windows 11 product key. If you have one (from a previous Windows license or a new purchase), enter it. If you do not have a key, click "I do not have a product key" — you can enter one later, and Windows will run in an unlicensed state with minor restrictions until you do.

Read the license terms and click "I accept." On the next screen, select "Custom: Install Windows only (advanced)." This shows you the hard drives in your computer. Select your main hard drive (usually labeled "Drive 0" or with a large capacity like "238 GB") and click "Next." The installer will format this drive and begin copying Windows 11 files. Your computer will restart several times — this is normal. Do not turn off your computer or remove the USB drive during this process.

Complete setup after installation finishes

After the files finish copying and your computer restarts for the final time, you will see the Windows 11 setup screen. Remove the USB drive when prompted. Create a local account or sign in with a Microsoft account — a Microsoft account lets you sync settings across devices, but a local account works fine if you prefer not to. Set your privacy settings (you can turn off most tracking options here), and wait for Windows to finish configuring.

Once you reach the Windows 11 desktop, your operating system is installed. Now you need to reinstall your programs and restore your files from your backup. Go to your backup drive or cloud storage and copy your files back to your computer. Reinstall programs like Firefox, Chrome, Microsoft Office, or any other software you use regularly. Windows Update will automatically download and install driver updates for your hardware over the next few hours.

Frequently Asked Questions

What if my computer will not boot from the USB drive?

Restart your computer and try a different boot menu key — common ones are F2, F12, Delete, and Esc. If you still do not see a boot menu, your computer may have Secure Boot enabled. Restart again, enter BIOS (same keys as above), find the Secure Boot setting, and disable it temporarily. Save and exit, then try booting from the USB drive again.

Can I keep my files and programs when I install Windows 11?

Not with a fresh installation. If you want to keep your files, you need to upgrade from Windows 10 using Windows Update instead of creating installation media. Go to Settings, select Update & Security, then Windows Update, and look for the Windows 11 upgrade option. This preserves your files and most programs, though it takes longer and sometimes leaves behind old files you do not need.

What if the installation fails or gets stuck?

If the installation stops responding or shows an error, restart your computer by holding the power button for 10 seconds. Plug in the USB drive again and restart the installation from the beginning. If you get the same error repeatedly, your USB drive may be corrupted — try creating the installation media again on a different USB drive.

Do I need a product key to install Windows 11?

No. You can install and use Windows 11 without a product key. Windows will run with a watermark in the corner and a few minor restrictions until you enter a key. If you have a Windows 10 license, you can often use that key to activate Windows 11 after installation.

How long does the entire process take?

Creating the installation media takes 10 to 20 minutes. The actual installation takes 20 to 30 minutes, plus several restarts. Reinstalling your programs and restoring files can take several hours depending on how much you have. Plan for at least two to three hours total from start to finish.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.