On Windows, Miniconda can be installed from the Command Prompt or PowerShell:

winget install --id=Anaconda.Miniconda3 -e

Update conda from Command Prompt / Terminal:

conda update conda

Setup the new shell support (PowerShell, Bash, Command Prompt, etc.) with

conda init

Reopen Terminal to see new conda environment.

If message upon opening PowerShell like:

Documents\WindowsPowerShell\profile.ps1 cannot be loaded because running scripts is disabled on this system. For more information, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170

Consider ExecutionPolicy like:

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned