How to create a hidden wasp on VeraCrypt?

Question

Encryption

Hello, I just had an incomprehensible problem with the creation of a hidden wasp on VeraCrypt. Apparently I'm doing something wrong and I don't understand what. I read all the documentation on the veracrypt website, but I can’t understand what is the reason. The bottom line is, I want to create a hidden Windows 10 OS by means of faith. I did as written in the documentation created 2 partitions with: 40 GB, e: 60 GB. I installed Windows 10 on s.
I downloaded verascript... The documentation says that next you need to go to verascript in the tab system-create a hidden OS... And then follow the instructions... However, this footnote "create a hidden OS" is not clickable and is grayed out color, that is, this item cannot be selected ...
Likewise, if I click create hidden volume, select encrypt os partition, the second item marked create hidden os is also greyed out and cannot be selected... What is the problem, what am I doing wrong, or what have I forgotten to do? Thanks