how are you doing? I have installed mkcert on windows to test it.
choco install mkcert
mkcert -install
mkcert -pkcs12 localhost
After testing it, I tried to remove it like this:
mkcert -uninstall
choco uninstall mkcert
Lastly I deleted the directory c:\users\username\appdata\local\mkcert
After doing this, any application running on http://localhost:port
does not work anymore.