Msi netbook wireless problem

There may be a physical switch for the wireless adapter on the front edge or side of the laptop -- otherwise it may need an Fn key combination. See the literature which came with the computer.

If you are confident that you've turned on the adapter go Control Panel, System, Hardware, Device Manager and see if the adapter is present or whether it is yellow flagged as faulty.

May just be a matter of downloading a later driver from MSI.