If your path contains environment variables that weren't defined at the start of the session, you'll want to expand those too:
$env:Path = [System.Environment]::ExpandEnvironmentVariables([System.Environment]::GetEnvironmentVariable("Path","Machine") + ";" + [System.Environment]::GetEnvironmentVariable("Path","User"))
For me this was useful after installing NVM which defines and adds %NVM_HOME% to the path.
To take this to its logical conclusion you could use this recursive function to expand instead:
function Expand-EnvironmentVariablesRecursively($unexpanded) {
$previous = ''
$expanded = $unexpanded
while($previous -ne $expanded) {
$previous = $expanded
$expanded = [System.Environment]::ExpandEnvironmentVariables($previous)
}
return $expanded
}
And then use:
$env:Path = Expand-EnvironmentVariablesRecursively([System.Environment]::GetEnvironmentVariable("Path","Machine") + ";" + [System.Environment]::GetEnvironmentVariable("Path","User"))
I've opened an issue to add this solution into refreshenv
from Chocolatey.