How do I change my path on flutter?

Make sure you set the path of the flutter/bin location under the environment variable (This PC -> right click to properties -> A dvanced system settings -> Environment variables) in the variable called as Path. If there are no variable named as Path then create one and set the flutter/bin path.

Update the PATH Environment Variable (Microsoft Windows)

Update your path From the Start search bar, enter ‘env’ and select Edit environment variables for your account. Under User variables check if there is an entry called Path: If the entry exists, append the full path to flutter\bin using ; as a separator from existing values.