I can use whatever version of emacs on windows, just want to use helm-git-grep or similar alternatives on windows.
Anyone using emacs on windows has a tip for git-grep functionality?
One alternative that I could suggest is helm-rg that uses ripgrep—it is very fast.
You can set helm-rg-default-directory to git-root (and you need this small tweak on Windows). Together with helm-projectile, it works great.