Windows 10: Double accent, no virus

I'm having a problem with accent in latin american language, when I use it writes 2 accents ´´. My language is latin american Chile, so I change to latin american Mexico and problem resolves, but when I restart I get the problem again and it solves bny changing it back to latin american Chile. If I leave only one language in the list, it gets the same problem with either and it just becomes more difficult to "solve". I need a good solution and not the workaround I'm using. Have scanned, no viruses, no keyloggers or malware used 4 different malware removal tools and didn't find anyth

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Acute accent key creates double ´´

So i'm having this super annoying issue where my acute accent key creates double ´´ But only in office 365 and mozilla products.
What's the normal behaviour of the acute accent key? Normally you press it once and nothing appears on screen as it's awaiting the second input, so you press acute accent and then e to get é etc.

I've found older threads on win7 forum and other places with no solution.
asus tp301ua, with windows 10 x64.

 

Double accents ~ ´ and ^ only

Hello,

I regularly use the French (France) and Portuguese (Portugal) layout so that I have fast access to the keyboard layout and accents for those languages. I have no other languages installed on my version of Windows 10. The issue I'm having started about a month ago.

Strangely, on the French keyboard I can type éç ù without issue, but I cannot use the circonflexe at all. I press the accent key and I receive two accents. Normally, I should be able to press the accent key (to the right of the letter 'p') once and then the desired letter (for instance, u) and receive û, Instead, I receive ^^. If I press the accent key and then press u, I will receive ^^u.

Similarly on the Portuguese keyboard, I can type ç without issue, but I have the same issue as above with ~~ and ^^ and ´´. They always appear as double accents. So I get ~~a instead of ã.

Since this only seems to affect the accents on the right hand side of the keyboard, I connected an external keyboard to see if this was a hardware issue. The issue is exactly the same. Also, this same issue is repeated on the On-Screen Keyboard (OSK). I've removed the languages (apart from English) and re-added them, but the problem persists. It must be a software or driver issue, but I'm unsure of what to test next. Any ideas?

Thank you!

 

Acute accent key creates double ´´

- do you mean AltGr ?

What's your keyboard set to?

The Best Way to Type French Accents on Windows (and Linux)