I'm having the same problem on my Dell Latitude D810, and I am positive that it is not the alt key physically sticking. It randomly happens when I am typing text, and my laptop is only two months old (never had any spills on it). Many people suggest to go to accessibility options to disactivate Stickykeys but it doesn't work.
Any help would be appreciated! Thanks in advance.
- Bryce
brycerice85@hotmail.com