Upgrade windows 8 to 8.1

Why can't I find the update in the Store?

Applies to Windows 8.1, Windows RT 8.1

If your PC is currently running Windows 8 (or Windows RT) and you want to update to Windows 8.1 (or Windows RT 8.1) in most cases you’ll see this free update prominently featured on the Windows Store home page. If you’ve opened the Store and you don’t see the update, try running the Windows 8.1 Update troubleshooter. This troubleshooter can identify some of the following problems that might be preventing you from updating to Windows 8.1.

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You might need the latest updates from Windows Update

Windows 8.1

To install the required Windows Update

1. Open Windows Update by swiping in from the right edge of the screen (or, if you're using a mouse, pointing to the lower-right corner of the screen and moving the mouse pointer up), tapping or clicking Settings, tapping or clickingChange PC settings, and then tapping or clicking Windows Update.
2. Tap or click Check for updates now, and then wait while Windows looks for the latest updates for your PC. If you don't have automatic installation of important updates turned on, you might need to tap or click Turn on recommended settings before you can check for updates.
3. If updates are found, tap or click the message telling you how many updates will be installed automatically. In the list of updates, look for one that includes (KB2871389) or (KB2917499) in the name (the exact name will vary, depending on your system.).
4. Tap or click Install to install all the recommended updates in the list.
5. When the updates are done, you’ll need to restart your PC. If you have any desktop apps open, save your work and close them before restarting. To restart, swipe in from the right edge of the screen (or, if you're using a mouse, point to the lower-right corner of the screen and move the mouse pointer up), tap or click Settings, tap or click Power, and then tap or click Restart.
6. After you’ve restarted your PC, on the Start screen, tap or click Store, and you should see the Windows 8.1 update. For more detailed info about installing Windows 8.1, see Update to Windows 8.1 from Windows 8.

You might be running an edition of Windows 8 that doesn’t support updating from the Store

Windows 8

Windows Store might not be showing the latest content

To refresh the content in the Store

1. Swipe in from the right edge of the screen, and then tap Search.
   (If you're using a mouse, point to the upper-right corner of the screen, move the mouse pointer down, and then clickSearch.)
2. Enter run in the search box, and then tap or click Run.
3. Enter wsreset.exe in the Run command and then tap or click OK.
4. Restart your PC.
5. On the Start screen, tap or click Store, and check to see if Windows 8.1 now appears on the Store home screen.

For more info about updating to Windows 8.1, see Update to Windows 8.1: FAQ.