Hi @Alphonse Okossi FT ,
Thanks for posting your query.
Unfortunately Azure Data Catalog registration tool is a 64 bit windows application and only support on 64 bit windows OS. Since your windows OS is 32 bit, it is throwing the error. Possible options are either to use a 64 bit Windows OS machine or to use Azure Data catalog portal.
Hope this info helps.
----------
Thank you
Please do consider to click on "Accept Answer" and "Upvote" on the post that helps you, as it can be beneficial to other community members.