Unable to view preinstalled OEM Windows Store apps
OEMs can modify the Windows ISO to include apps that can get automatically installed along with Windows. if you were to go visit the Windows Store you may not find these apps are present in the Windows Store. These apps are offered only to those users who have an OEM license installed on their system. This situation can arise under the following scenarios, says KB2825759: If you have upgraded to Windows Pro or added the Media Center Pack, to your original Windows OEM version, you will have to reinstall the OEM copy of Windows to be able to see the OEM apps in the Windows Store. This is not an option many may want to consider just to be able to access the OEM apps.
If you have not upgraded your Windows OEM version, then you may try the following and see if it helps resolve your issue:
Reset Windows Store cache using WSReset.exe.Confirm that Windows 8 copy is activated. If Windows Activation has failed you may need to troubleshoot Windows Activation states.Reset Windows Activation. To do this, open an elevated command prompt type the following command, and hit Enter slmgr /rearmRe-activate Windows using the Internet or Telephone.
Hope something here helps you.
What are the preinstalled apps in Windows?
Apps that are not part of the Core OS, but you can see them when you get access to Windows are preinstalled apps. These apps can not only be distributed by Microsoft but also by the OEMs. Some of the apps are installed, but some are available only as a shortcut.
What is OEM optimized Windows?
At times when an enterprise needs to make a lot of laptops ready such that all settings, policies, apps are pre-applied, OEMs are asked to get this ready and called OEM optimized Windows.