I ran the upgrade from 14.04 to 16.04. Ran flawlessly until very end, and I got a pop-up which said the mscorefonts installer had not completed. I ignored it, because I don't use any Microsoft products, and frankly prefer the Ubuntu fonts.
The pop-up keeps showing up every time I apply an upgrade or fix. So I decided I would try to correct the problem.
First I dropped to terminal and ran: sudo apt purge ttf-mscorefonts-installer That ran without issue. Then ran sudo apt install ttf-mscorefonts-installer Now this is where the fun began. During the install I could not accept the EULA, and had to quit the terminal with only a partial and corrupted install.
Now I can't purge because the file is corrupted, and wants me to reinstall first, but when I try to reinstall I still hang up unable to accept the EULA. Any advice from the Ubuntu Wizards?