Make sure your W8 OS is first activated and all updates are up to date.
Make sure your W8 is activated and it's to your advantage to setup a MS Hotmail or Outlook Online Account in order for you APPS to work.
Activation → Right click the START Icon → SYSTEM → scroll down to Windows Activation
Set up your Windows Live Account → CHARMS Menu(bottom RH corner) → Settings → Change PC Settings → USERS → Your Account & setup
From the Desktop screen → Windows Key + W → enter USER in search
Click USERS on search results → "Your Account" & setup
You will be asked how to would like to obtain your code → Text or an email account
For example if you enter your Yahoo email as the source, then go to your Yahoo Mail Inbox to retrieve this message from MS →
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Microsoft will send you an account verification code to the email address you specified →
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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Restart, depending on the demand, 8.1 UPDATE may appear in the STORE for a couple of hours
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