Microsoft release new feature which is in BETA Release.
① Open the Windows Control Panel
② Select [Clock and Region]-[Region]
③ Open the [Administration] tab
④ Check "Beta: Use Unicode UTF-8 in worldwide languages" from "Change system locale".
⑤ Restart Windows
Since Microsoft has declared that it as a BETA feature, Currently it is not known if Microsoft will incorporate this setting in windows 10 as a permanent feature or not. This is completely a Microsoft decision.
Being a BETA feature this is not yet officially tested with any available version of HCL Notes. And hence currently it is unaware if it will cause any impact on working of HCL Notes.
Please consider this enhancement request.