It seems like being able to run apps in a sandbox would also be useful and quite important for Home users, since most users of Windows 10 seem to be using the Home version as a result of it being bundled with their computer. Making this available for the ARM version of Windows 10 would also be swell. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Since you mentioned Linux KVM however, it is worth noting that somebody ported the Linux KVM to Windows, enabling Linux-based device drivers to actually run on Windows, but it still has a lot of rough edges and is far from perfect. Any chance that you guys could take a look at that as well? It could probably supplement WSL: https://www.elpauer.org/2011/03/linux-drivers-running-on-windows/ https://www.linux-kvm.org/images/8/8a/WinKVM-KVMForum2010.pdf https://github.com/ddk50/winkvm Taking another look at the NTVDM would be nice too. Somebody has successfully ported it to Windows x64, but can only distribute the patches they made to help get it working as the majority was built on leaked Windows NT source code, which for obvious legal reasons they themselves could not distribute. Since most if not all of the work is already done, however, it is their hope that Microsoft would take notice and officially implement the NTVDM x64 port in some form. Here's a link to their patches on github: https://github.com/leecher1337/ntvdmx64 Also of note are vDOS and DOSBOX. Though neither of those are perfect, and they do not offer the full transparency and flexibility provided by NTVDM, they are both open source, and code from them could probably be implemented in a future version of NTVDM as well, in order to improve performance, compatibility and security. https://vdos.info Not going to link DOSBOX, because everyone already knows about it by now, including where to find the source code. P.S.: The website here seems to be broken. Clicking "Preview" instead reloads the page, and I'm not able to like people's comments.