That means it does not create restore partition as by OEM. We need separate installation media. ie we can use the same installation media which we used to install. Am I correct?
Yes.
When you
Refresh or
Reset Windows, it will reinstall Windows 8.1, but only if you have Windows 8.1 USB/DVD installation media.
You must insert Windows 8.1 USB/DVD 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).
View attachment 63816