Hi,
Thank you for writing to Microsoft Community forums.
SwiftKey powers the typing experience on Windows when using the touch keyboard to write in English (United States), English (United Kingdom), French (France), German (Germany), Italian (Italy), Spanish (Spain), Portuguese (Brazil), or Russian. This is an existing feature that we've improved for Windows 10, version 1809.
- Does SwiftKey work in Windows 10, yes or no? Yes, it is available.
- If yes, how do I activate it? Follow the below suggestion-
If you're a touch keyboard user that writes in any of these languages, please try out the text predictions and shapewriting in this build and let us knowhow it feels for you. If you'd like to compare how the keyboard feels with and without this change, check the options for supported languages under Settings > Devices > Typing > Suggestions and Autocorrections.
To know what’s new in in the Windows 10 Insider preview builds (RS5), refer
Also, for the touchpad not responding issue, you may go through the suggestion under the topic The touchpad doesn't respond right away after I've been typing from the article.
Hope it helps.
Regards,
Mala S
Microsoft Community - Moderator