how to restore ipad from ios 9 beta 5 to ios 8.4.1 by windows 10

You were given the appropriate links and resources when you joined the Beta program. We are not allowed to discuss Beta software in the public forums.

Please consult all the documentation you were supplied.

Specifically this website:

How to unenroll in the Beta Program:

https://beta.apple.com/sp/betaprogram/unenroll#ios

this is a user helping user forum not apple

did the google search for you

http://www.imore.com/how-downgrade-ios-9-back-ios-84

more hits

downgrade from ios 9

Hi

Wait for software update next week?

Cheers

Brian (UK )