public update version of Windows 10
What is " public update version of Windows 10 " ?
I suppose you meant the Anniversary Update which began on August 2nd, 2016 ?
Anyway, each time you upgraded from one version to a new one, Microsoft allows you only 10 days to decide if you want to keep the new version or not.
Within the 10 days you can revert back to the previous build as long as you have not deleted the windows.old.
In your case, you are over your 10 days limit.
The only way to go back to your previous build is .....
1.
IF you had created an iso file of your previous build.
If you have, you can then use the iso file to revert back to previous build.
2. If you have done a system image backup of your previous build.
If you have, you can do a system image restore to go back to your previous build.
Otherwise, Creators Update version 1703 is there to stay.
Sorry.