There could be different reason, I hope computer's hard drive got enough space left.
You did one good job mentioning about event viewer, I will suggest please clear your IE history, cookies then clean your trash bin. Use disk clean. Restart your computer.
Do not open e-mail, messenger or Internet, Start Magix Muisc Maker and check if it works fine or not.
If you still face problem and you think you could re-install Magix Music Maker then try that.
You got nice computer just free space is not enough.
Did you also try re-installation of Magix Music Maker? if you did not then try it or if you have done that then better contact Magix support they got a a utility to check the problem. You will have to ask them you need "Syscheck". When you will use syscheck it will create a report and will send to Maigx then they will examine and report you back.
Note: if there is any possibility you can backup your data from computer and empty more space that might also help.