When getting to this part, virtualenv venv, this is the error I get, yes, Python is installed.
'virtualenv' is not recognized as an internal or external command,
operable program or batch file.
pip --version = pip 20.2.1 from C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1776.0_x64__qbz5n2kfra8p0\lib\site-packages\pip (python 3.8)
What did you already try to solve it?
Started from scratch several times.
Have you tried running in safe mode and if so did it solve the issue?
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Complete Logs
octoprint.log, serial.log or output on terminal tab at a minimum, browser error console if UI issue ... no logs, no support! Not log excerpts, complete logs.)
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Additional information about your setup
OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible
since this path is not where I would have expected it to be. As a result, you'll have to adjust the commands yourself to however you have installed Python.
I downloaded Python and installed it, just as instructions stated.
It states to only do that step you show if it is not found.
"If you get a message about pip not having been found, your PATH hasn't yet been updated to include it. Do it manually for now on the active prompt by redefining PATH (be sure to check this exists!):"
Well, I removed Python, and reinstalled it, and this time checked "Add Python to environment variables", now I made progress.
It's working after I did this. Thanks for the idea of checking the environment variable.