Hi Vio. I'm Greg, an installation specialist, 10 years awarded Windows MVP, and Volunteer Moderator, here to help you.
Download and install Media Creation Tool, follow the instructions in the middle of the Downloads page to create bootable media:
https://www.microsoft.com/en-US/software-downlo...
Then folllow these steps which compile the best possible install of Windows which will stay that way as long as you stick with the tools and methods given, and has zero reported problems.:
http://answers.microsoft.com/en-us/windows/wiki...
It should offer the Pro N version if it is supported in your country.
If not then use the alternate download site from MS TechBench here:
https://tb.rg-adguard.net/public.php
Burn to DVD using WIndows Image Burner or create bootable flash using one of the options here:
https://www.tenforums.com/tutorials/2376-create...
More about N and KN version here:
https://www.howtogeek.com/322112/what-is-an-n-o...
I hope this helps. Feel free to ask back any questions and keep me posted. If you'll wait to rate whether my post resolved your problem, I will keep working with you until it's resolved.
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Standard Disclaimer: There are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the sites before you decide to download and install it.