How do I delete environment variables in Windows PowerShell?

How do I delete environment variables in Windows PowerShell?

You can delete environment variables in PowerShell using the Remove-Item cmdlet. For example, to delete a variable named 'MY_VAR', you would use: Remove-Item Env:MY_VAR.

Can I delete multiple environment variables at once?

Yes, you can delete multiple environment variables by using a loop. For example: @('VAR1', 'VAR2') | ForEach-Object { Remove-Item Env:$_ }.

What if I want to check if the variable exists before deleting?

You can check if an environment variable exists using Test-Path. For example: if (Test-Path Env:MY_VAR) { Remove-Item Env:MY_VAR }.

Is there a way to delete user-specific environment variables?

Yes, user-specific environment variables can be deleted in the same way, as they are stored in the user profile. Just use the same Remove-Item command.