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Windows 11 Installation Guide

This guide shows how to install (or upgrade to) Windows 11 using the official Windows 11 ISO file.

 

Before you start

  • Back up important files (just in case).
  • Make sure your PC has enough free space (Windows 11 install files are large).
  • Keep your PC plugged into power (especially on laptops).
  • The ISO download is usually around 5–6 GB, so a stable internet connection helps.

 

Step 1: Download the official Windows 11 ISO

Download the official Windows 11 installation ISO from Microsoft using our link below:

Download the official Windows 11 ISO file

Once the ISO is downloaded, continue to the next step.

 

Step 2: Locate the ISO file in File Explorer

Open File Explorer and go to the folder where the ISO was downloaded (usually Downloads). Then double-click the ISO file to open it.

A Windows 11 desktop shows File Explorer open to the Downloads folder. The “Win11_21H2_English_x64.iso” file is selected. Step numbers highlight the Downloads folder, the file, and the File Explorer icon on the taskbar.

Step 3: Open the ISO and run “setup.exe”

After you open the ISO, a new window will appear showing the ISO contents (it often looks like a DVD drive). Find setup (setup.exe) and double-click it to begin the installation.

A Windows 11 desktop shows File Explorer open to a DVD drive. Several folders and files are visible, with the bootstrap application highlighted. The taskbar is at the bottom, showing system icons and the time.

 

Step 4: Allow Windows Setup to make changes

Windows may show a security prompt (User Account Control). Click Yes to allow Windows Setup to run.

A Windows User Account Control pop-up asks, Do you want to allow this app to make changes to your device? with Yes and No buttons; Yes is highlighted. The app is from Microsoft Windows.

 

Step 5: Confirm the optional setup checkbox and continue

On the “Install Windows 11” screen, you may see an optional checkbox (for helping improve the installation experience). Leave it enabled (or adjust if you prefer), then click Next.

Windows 11 Setup screen with the option “I want to help make the installation better” checked and the “Next” button highlighted at the bottom right. The desktop background is partially visible.

 

Step 6: Accept the license terms

Read the license terms and click Accept to continue.

A Windows 11 Setup screen displays license terms and conditions. At the bottom, options to “Decline” and “Accept” appear, with the “Accept” button highlighted in red. The Windows 11 desktop is visible in the background.

 

Step 7: Wait while Windows checks for updates

Windows Setup will check and prepare updates. This can take a few minutes. Keep your PC on and wait until the next screen appears.

A Windows 11 Setup window is displayed on a desktop screen, showing Getting updates with a progress bar at 46%. The background has a blue abstract pattern and the taskbar is visible at the bottom.

 

Step 8: Review “Ready to install” and open the “keep” options

When you see the Ready to install screen, you can review what will be installed. If you want to choose what Windows should keep, click Change what to keep.

Windows 11 Setup screen showing Ready to install with options to install Windows 11 Pro and keep personal files and apps. A cursor points to Change what to keep. Taskbar and blue wallpaper visible.

 

Step 9: Choose what to keep

Select the option that fits your situation:

  • Keep personal files and apps – best choice for most users (keeps your files and installed apps).
  • Keep personal files only – keeps your files, but removes apps.
  • Nothing – removes everything (apps, files, and settings). Use only if you want a clean start.

After selecting the option you want, click Next.

A Windows 11 setup screen titled Choose what to keep, displaying three options: keep personal files and apps, keep personal files only, or keep nothing. The Next button is highlighted at the bottom right.

 

Step 10: Start the installation

You’ll return to the Ready to install screen. Close any open programs, save your work, then click Install.

A Windows 11 installation screen showing “Ready to install.” The options indicate Windows 11 Pro will be installed, keeping personal files and apps. The “Install” button at the bottom right is highlighted.

 

Step 11: Wait while Windows 11 installs

Windows will begin installing. Your PC may restart several times — this is normal. Do not turn off your computer during this process.

A blue screen displays Installing Windows 11 with a progress indicator at 1% complete, a message stating the PC will restart several times, and a Cancel button below the progress.

 

Step 12: Installation complete

When everything is finished, Windows 11 will load and you can start using your PC.

If you need software for work or everyday use, you can also check our store for tools like Microsoft Office, antivirus, VPN, or professional apps (for example: Project or Visual Studio).

A computer screen shows the Windows 11 Start menu with pinned apps like Word, Excel, Edge, and others. Below, recommended files are listed. The taskbar with various icons is visible at the bottom of the screen.