Alt + 017 brings me to the New Tab page.

Recently I've noticed that whenever I tried to type a Alt + 017X code, I was sent back to the New Tab page. This never happened before, so I was a bit worried.

Then I went on to search on google on how to fix the problem, and there were only 2 people that have had this problem, and neither of them managed to fix their problem.

This seems to be happening with all browsers I have (Google Chrome, Mozilla Firefox, Opera, Edge and even Internet Explorer), and it's really upsetting when I just want to use one of these codes, especially if i'm on, let's say, a game and suddenly I'm sent back to the start page.

I've read somewhere ( http://www.cs.virginia.edu/~mjs6bc/tables.cgi?item=ALT-Codes&b=1 ) that Alt + 017 means "Dev Control 1", if that helps.

Also, altough it also says that Alt + 018, 019 and 020 also mean "Dev Control X", they don't actually do anything.

I use Windows 10 64-bit, and my keyboard layout is POR PTB2 (Portuguese-BR Keyboard, ABNT2)