The Windows' screen reader, Narrator, is unable to read aloud any element of the user interface of Bitdefender 2017.
This user interface doesn't handle keyboard navigation, which is also a np-go for many users with motricity disability.
I suspect you did this in purpose to avoid trojans and co to disable the protection from the accessibility navigation feature, Even the installer doesn't respect any accessibility guideline !
Some users can only use a single (rather big) button to navigate the whole system : don't expect them to use a mouse !
More than 280 million users are estimated to have a visual impairement worldwide (source: http://www.who.int/mediacentre/factsheets/fs282/en/ : don't expect them to see what is written on-screen !
This may also concern the Bitdefender's Android UI (with the integrated Talkback/Brailleback screen-reader) and even the macOS UI (with the integrated Voiceover screen reader), but I haven't checked them yet..
So please, please :
1. make your installer accessible
2. make the bitdefender products accessible
3. follow the law, : https://wiki.gnome.org/Accessibility/Laws
Technical guidance for accesisbility :
- Windows : https://developer.microsoft.com/en-us/windows/accessible-apps
- macOS : https://developer.apple.com/accessibility/macos/
- Android : https://developer.android.com/guide/topics/ui/accessibility/checklist.html
- iOS : https://developer.apple.com/accessibility/ios/
- Linux (good for tailored accessibility) : https://opensource.com/life/15/5/accessibility-linux