If you use the Windows 10 refresh it will be 10. If you use a factory restore/refresh there is a chance it will go back to factory conditions.
I have windows 8 preinstalled in my VIAO laptop. I upgraded it to windows 8.1 and now I am going to upgrade it to Windows 10. Whenever my system started running slow i choose to Refresh it for gain the performance. My question is if i choose to Refresh Windows 10 what will happen. Will my laptop be downgraded to Windows 8/8.1 or it will remain a fresh Windows 10. Please elaborate this in details.