How to activate conda environment from powershell?

You don't need Admin permission.

Once you install Anaconda or Miniconda on Windows, open a Anaconda Powershell Prompt from Start Menu.

Or, If you don't see it there, then assuming you have installedminiconda3 at path C:\miniconda3\4.9.2, do:

powershell -ExecutionPolicy ByPass -NoExit -Command "& 'C:\miniconda3\4.9.2\shell\condabin\conda-hook.ps1' ; conda activate 'C:\miniconda3\4.9.2' "

Now try:

conda init powershell

and reopen powershell.

Additional note: By default conda will autoactivate itself, when we open terminal. If you prefer not, then disable auto-activation with:

conda config --set auto_activate_base false

Open a Anaconda Powershell Prompt from Start Menu.Now Try:

conda init powershell

Now restart the powershell, if find some error like this in powershell:

\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. At line:1 char:3

Then change the execution policy. Type this code to powershell:

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned

To find more with execution policy you can visit this link.

When you use Anaconda or Miniconda type in Anacondaprompt:

conda init powershell