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I am Trying To add a System Variable here using PowerShell:
I have tried both ways using
$env:MyTestVariable = "My test variable." and
[Environment]::SetEnvironmentVariable("TestVariableName", "My Value", "<option>") However neither of them seem to add to this section. I have tried restarting the computer as well to see if it would take effect then. I have looked at technet along with countless other websites, but nothing I have tried has worked.
How can I set a system variable with PowerShell?
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To set the environmental variable using PowerShell you need to use the assignment operator (=). If the variable already exists then you can use the += operator to append the value, otherwise, a new environment variable will be created.
On the Windows taskbar, right-click the Windows icon and select System. In the Settings window, under Related Settings, click Advanced system settings. On the Advanced tab, click Environment Variables. Click New to create a new environment variable.
Using $env:Path variable in PowerShell to set environment variable for the session or temporary. Use [System. Environment] method in PowerShell to set environment variable permanently.
Run PowerShell as an administrator (to get the necessary registry access permissions) then call out to the .Net framework to set it:
[Environment]::SetEnvironmentVariable("MyTestVariable", "MyTestValue", "Machine") NB. it won't take effect within the same process, you'll have to make a new PowerShell process to see it.
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