I cannot add an environment variable on Windows

I want to add an environment variable using setx command. I used this syntax.

setx /M path "%Path%;C:\Program Files\Android\android-sdk\platform-tools"

After i enter this, this error happen.

access to registry path is denied.

How do i fix this error?

1 Answer

You must be an a Administrator in order to do this - Ramhound

I post as an answer myself. In order to do add an environment variable, I have to log in as Administrator.