'choco' command not recognized when run as administrator on Windows

1. First, ensure that you are using an administrative shell of command prompt(https://www.howtogeek.com/194041/how-to-open-the-command-prompt-as-administrator-in-windows-8.1/).

2. Copy the below text into the command prompt.

   @"%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command "iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))" && SET "PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin"

3. Then press enter key from the keyboard. After few seconds you get complete info about current installation.

4. If you don't see any errors. Type choco or choco -? now.

Reference

First Open the Command prompt as administrator and then run -

@powershell -NoProfile -ExecutionPolicy Bypass -Command "iex ((new-object net.webclient).DownloadString('https://chocolatey.org/install.ps1'))" && SET PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin

And then restart the Command prompt, now choco is successfully installed

The choco environment variable has been altered. I ran into a similar problem when I tried setting env variable for Java SDK, but I was quick to recognize it when I ran the commands presented to me in the documentation which completely overwrites my env Path variable.

If you are sure you've choco installed. Check your System variables and look for Path variable if it has some values like C:\ProgramData\chocolatey\choco.exe;C:\ProgramData\chocolatey\bin if not add it.

And you can save you time by installing it. Installing via cmd line

Powershell:

Copy and Paste the code below to your PowerShell

Set-ExecutionPolicy Bypass -Scope Process -Force; iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))

OR Window CMD.exe:

@"%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command "iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))" && SET "PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin"

After installation: run choco you see the version of chocolatey installed. Mine

Chocolatey v0.10.14Please run 'choco -?' or 'choco <command> -?' for help menu.

hopefully this help read more