This major update is completely free to all Windows 8 owners.

It’s recommended that you update toWindows 11because Windows 8.1 stopped receiving security updates in January 2023.

Learnhow to upgrade to Windows 11 from Windows 8if you need help.

Select edition and product language menus on Windows 8.1 download page

If you have a previous version of Windows (like 7, Vista, etc.)

On the same page, select your language and then chooseConfirmagain.

Finally, pick the version you want to run, either64-bit Downloador32-bit Download.

Mount a disc image option for Windows 8.1

Windows 8 has abuilt-in method for mounting ISOs, but there are also third-party programs likeWinCDEmuthat will work.

Start the Windows 8.1 Installer

fire up the virtual disc to start the Windows 8.1 Setup utility.

One way to do that is by opening the “disc” and then executingsetup.

setup file right-click menu from Windows 8.1 disc

Download and Install Updates

The first screen has you install important updates.

Continue by selectingDownload and install updates (recommended).

Enter the key you recovered earlier and then pressNext.

Get important updates screen in Windows 8.1 setup

Or, to erase everything and start fresh, chooseNothing.

If so, review it and then selectOK.

Start the Install

On theReady to installpage, chooseInstall.

Product key text box in Windows 8.1 setup

Wait While Windows 8.1 Installs

There’s nothing to do for this step except wait.

Windows 8.1 will install, and during this time, the computer might restart, even multiple times.

Just be patient as it finishes everything it needs to.

License terms in Windows 8.1 setup

This will interrupt the installation.

Walk through the various screens and complete them as you see fit.

Keep personal files only button in Windows 8.1 setup

Ready to install review page in Windows 8.1 setup

Installing Windows 8.1 progress page

Windows 8.1 personalize screen