Sideloading workarounds For WIndows 8.1 Bing edition

i am developing win 8 app and faced an issue on publication. Since the app is corporate i decided to use sideloading. Now tablets came and i found that they use Windows 8.1 Bing Edition, and unfortunately, they will not be domain joined. During testing, for sideloading, i used windows developer license, which has to be updated every 1 month. Now, the app is ready to go to production environment, but i can not resolve how to install it properly. I found that sideloading is not available for this OS and it made sad - Tablets are purchased (

I tried to use this workarounds

But looks like it does not work.

What do you suggest? Is there any way to sideload app on Windows 8.1 Bing Edition? Should i publish it on Windows Store? Is it possible to limit access to app in windows store? Should i convert Windows app to WPF?
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Why not upgrade to win8.1 pro?
nospanovAuthor Commented:
Not possible to upgrade from 8.1 Bing to Pro. Also, not possible to join to domain.
As far as I know it's possible to upgrade. Will research.

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