If you are facing problem with Mac and every time it says “please shutdown your computer” then here are some troubleshooting steps for you.
First, restart your device in the safe mode. If the device successfully runs in the safe mode, pick Apple menu > Software Update, and after that download and then install software in your device.
You can also uninstall any other kind of plug-ins or any kind of improvement software given by the manufacturers than Apple.
Now PRAM i.e. reset parameter random-access memory.
If required further tech assistance then you can immediately get in touch with our tech support team on our toll free number 1-855-602-7997.