The submit button not working is related to Microsoft`s Smart Screen Filter blocking Canvas submissions.
Another possibility is bad data is being stored in your browser`s cache. There is a seperate article for that located here.
Keep in mind, Windows updates can take awhile to install. If you need to submit an assignment right away, then download one of the browsers below.
If you are still having problems submitting assignments after updating Windows 10 to the Anniversary update or while using another browser, please email the IT department by using email@example.com.