> OPTION ONE <
If you have an OEM PC that came with Windows 8 preinstalled and you updated to Windows 8.1, then when you
refresh or
reset Windows, it will reinstall Windows 8 from hard drive recovery partition (recovery image location) or from the
recovery USB flash drive. Afterwards, you will need to update to Windows 8.1 via the Store again.
Note: Sometimes it happens that after doing the upgrade to Windows 8.1,
refresh and
reset does not work anymore.
Note: But all should be okay if you receive the following screen (see screenshot below) when you select:
PC settings >
Update and recovery >
Recovery > click on the
Get started button under the
Refresh your PC without affecting your files section.
Note the following text:
Go to the Windows Store to reinstall Windows 8.1 and your apps.
> OPTION TWO <
If you don't have an OEM PC that came with Windows 8 preinstalled and you updated Windows 8 to Windows 8.1, then when you
refresh or
reset Windows, it will reinstall Windows 8.1, but only if you have Windows 8.1 USB/DVD installation media.
Note: You must insert Windows 8.1 USB/DVD installation media.
See this link: How to download Windows 8.1 installation media.
If you don't insert any installation media or if you insert Windows 8 USB/DVD installation media, then you receive the following error message: "
Insert Media. Some files are missing. Your Windows installation or recovery media will provide these files." (see screenshot below).