Try to install LaTeX for Windows 10 again.
Follow this,
The LaTeX Project
TeX Live on Windows
Ref:
LaTeX-a complete setup for Windows
How to create LaTeX documents with Emacs
Try to install LaTeX for Windows 10 again.
Follow this,
The LaTeX Project
TeX Live on Windows
Ref:
LaTeX-a complete setup for Windows
How to create LaTeX documents with Emacs
Additional for Japanese TeX (needs TeX and Emacs with supporting Japanese):
Using AUCTeX with Japanese TeX
I found this very useful YouTube contents, OrgMode Tutorial:
E01S01: Headlines & outline modeSoftware –> emacs-w64 or GNU Emacs (How to Install on Windows10)
(Choose file to install: emacs-26.3-x86_64.zip)
How to use –> A guided tour of Emacs, Practical Emacs tuorial