Why can't I update to Windows 8.1?

Make sure you've done all the Windows updates and then it should appear.

windows 8.1 update was withdrawn from the store , by microsoft company . because it makes some problems to tablets devices . so it's not available now.

You may UPDATE W8 to 8.1 as long as your current W8 OS is activated with a valid Product Key.

To view if your copy of W8 is activated, right click the START icon in the bottom LH corner of the screen & click on SYSTEM.

You must be signed in to Windows 8 with as an Administrator along with a MS Hotmail or Outlook Online Account and have your W8 account activated in order for you APPS or the STORE to work.

From the CHARMS Menu → Settings → Change PC Settings (bottom RH corner) → USERS → Your Account & setup

From the Desktop screen → Windows Key + W → enter USER in search

Click USERS on search results → "Your Account" & setup

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Microsoft will send you an activation code →

Thanks for helping us verify your Microsoft account (xxxxxx@live.com)!

Here is your code: 8****66

If you didn't request this code, we recommend that you go to https://account.live.com/ and change your password.

Thanks,

The Microsoft account team

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Once you are signed in to W8 and your account is activated, then go to START screen & click STORE. The 8.1 update will be displayed. You WILL NOT again be asked for your Product Key. The UPDATE process takes close to 2 hours.

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Run Windows Update then open the Store app and try again.

- Dominic