You can check for updates and patches via the Settings > Update & Security > Windows Update.
If the Windows 10 version 1809 is not showing up on your computer, Microsoft recommends you to wait until the update is offered automatically. Last week Microsoft re-released the Windows 10 October 2018 Update to the consumers and it’s gradually rolling out to the users. Windows 10 October 2018 Update was released last week Microsoft is aware of this and the company will address the issue with the Media Player soon.
Windows Media Player is not widely used anymore but there are some users who are refusing to give up classic software in lieu of the latest and greatest music service. Microsoft has already stopped the development of Windows Media Player but the program is available in Windows 10. Microsoft hasn’t said it is going to kill Media Player anytime soon and it’s likely that the old program will continue to live for a while.