Hi,
You cannot simply convert a desktop app to Windows store app, it needs to be re-build and it is a problem of Application of development.
If you decide to develop a Windows metro App, please check Windows SideLoading phrase. The official article about SideLoading fow Windows 10 has not released yet, but you could have a look at Windows 8.1.
Windows Sideloading do have License requirement about that, Regarding to Windows app Sideloading problem, We’d suggest you post at MSDN Windows app forum. There you can get more effective suggestion by other experts who familiar with design of Windows APP
sideloading. Your understanding is highly appreciated.
https://social.msdn.microsoft.com/Forums/windowsapps/en-US/home?category=windowsapps
Windows 8.1 Update: Sideloading Enhancements
http://blogs.windows.com/itpro/2014/04/03/windows-8-1-update-sideloading-enhancements/
Try it out: sideload Windows Store apps
https://technet.microsoft.com/en-us/windows/jj874388.aspx
Regards,
D. Wu
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