native access wont open on windows 10

It is impossible to get help if you do not provide sufficient information.

"native access wont open, windows 10" is far too generic for anyone to have a clue, even for NI tech personnel, so please be more specific and give more details.

However, this article might be a good start for you to solve your problem:

https://support.native-instruments.com/hc/en-us/articles/360019116758-Native-Access-Does-Not-Start-Install-Windows