Conda init not activating environments, Windows 10

I am having the same issue as this person, down to the letter, where trying to run conda activate myenv returns:

C:\Users\nt1\AppData\Local\anaconda3>_conda init cmd.exeWARNING: Cannot install xonsh wrapper without a python interpreter in prefix: C:\Users\nt1\AppData\Local\Temp\_MEI36162ERROR during elevated execution.  rc: [WinError 0] The operation completed successfully.needs sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\Scripts\conda.exeneeds sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\Scripts\conda-env.exemodified      C:\Users\nt1\AppData\Local\Temp\_MEI36162\Scripts\conda-script.pymodified      C:\Users\nt1\AppData\Local\Temp\_MEI36162\Scripts\conda-env-script.pyneeds sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\condabin\conda.batneeds sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\Library\bin\conda.batneeds sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\condabin\_conda_activate.batneeds sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\condabin\rename_tmp.batneeds sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\condabin\conda_auto_activate.batneeds sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\condabin\conda_hook.batneeds sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\Scripts\activate.batneeds sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\condabin\activate.batneeds sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\condabin\deactivate.batneeds sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\Scripts\activateneeds sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\Scripts\deactivateneeds sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\etc\profile.d\conda.shneeds sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\etc\fish\conf.d\conda.fishneeds sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\shell\condabin\Conda.psm1needs sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\shell\condabin\conda-hook.ps1needs sudo    C:\Users\nt1\AppData\Local\Temp\_MEI36162\etc\profile.d\conda.cshmodified      HKEY_CURRENT_USER\Software\Microsoft\Command Processor\AutoRun==> For changes to take effect, close and re-open your current shell. <==Operation failed.C:\Users\nt1\AppData\Local\anaconda3>

Also, the executable is _conda rather than conda. That _MEI36162 directory doesn't actually seem to exist, or it's not a directory that I can see in the Windows file explorer (even with the show hidden items box checked) or cd into from the command prompt. I guess maybe it's supposed to be created when you run the command and deleted immediately, but I don't know.

The question I linked to was asked over three years ago and none of the answers were helpful to me. Somebody suggested using conda.bat in condabin instead of the _conda.exe file but that returns:

Traceback (most recent call last):  File "C:\Users\nt1\AppData\Local\anaconda3\Scripts\conda-script.py", line 11, in <module>    from conda.cli import mainModuleNotFoundError: No module named 'conda'

I'll add that somebody in response to a similar question suggested running the commands in anaconda prompt; opening anaconda prompt presents me immediately with the same error.

Also, for clarity: I have anaconda3, anaconda3/Scripts, and anaconda3/condabin all added to Path.

Thanks in advance.