Welcome to Microsoft Community. Your interest in Windows 10 is much appreciated.
Windows may be showing DirectX version depending upon the graphic card installed or the processor of your system.
Follow the steps to check which version of directX is installed in your computer.
a) Press Windows + R.
b) Type dxdiag and click ok.
I suggest you to refer the link and try installing the latest version:
How to download and install DirectX.
Keep us posted if you face any issues on windows in future. We will be glad to help you.