The document discusses the capabilities and performance considerations for running Windows 10 apps on ARM architecture, particularly for devices like HP Envy x2 and Lenovo Miix 630. It outlines the steps for recompiling applications for ARM, including UWP and desktop bridge apps, while noting limitations for certain x86 and x64 apps. Lastly, it emphasizes a positive experience of porting a large quantity of C++ code with minimal adjustments.

2. Group Program Manager Dir of Software Development

3. Always Connected PC
Amazing battery lifeWindows 10 Instant OnLTE Connectivity

5. HP Envy X2ASUS NovaGo TP370QL Lenovo Miix 630
Qualcomm Snapdragon 835

10. Remember - Windows cross-platform by design

11. Compiled for ARM64
Compiled for
ARM64
Compiled for
ARM64
Compiled for
ARM64
Compiled for
ARM64
Compiled for
ARM64
Compiled for
ARM64

14. App type
UWP app store
Desktop Bridge (Centennial)
store app
X86 Win32 desktop app
X64 Win32 desktop app
Driver (e.g. Anti-Virus)
What to do?
Recompile for ARM32
Submit x86 version to Store
Ensure x86 version available on
website
No support
No support
Performance
Best
Emulation
Emulation
N/A
N/A

16. App type What to do? Performance
UWP app store Recompile for ARM32 Best
Desktop Bridge (centennial)
store app
Submit x86 version to store Emulation
X86 Win32 desktop app
Ensure x86 version available on
website
Emulation
X64 Win32 desktop app No support N/A
Driver (e.g. Anti-Virus) No support N/A
App type What to do? Performance
UWP app store Recompile for ARM32, ARM64 Best
Desktop Bridge (centennial)
store app
Recompile for ARM64 Best
X86 Win32 desktop app Recompile for ARM64 Best
X64 Win32 desktop app Recompile for ARM64 Best
Driver (e.g. Anti-Virus) Recompile for ARM64 Best

19. Neutral (e.g. PWA)
UWP
Native desktop Bridge (centennial)
Native Win32 desktop
Windows 8 Metro
Zero work – Just works
Minimal – typically zero
Some work (e.g. assembly code or 3rd party libs)
Some work (e.g. assembly code or 3rd party libs)
Move to UWP

20. I compiled over 8.5 million lines of C++ code with only very minor tweaks, and it “just worked”. – Morten Nielsen MVP

25. Disk/Networking
Windows Kernel + Drivers
GraphicsCPU
H/W
Kernel
mode
Edge, Cortana, Shell…
System Services (NTDLL)
Native System DLLs
Native System DLLs
Native System DLLs
Usermode
x86 app (e.g. Photoshop)
WOW Abstraction Layer
System Services (NTDLL)
X86-to-ARM
CPU Emulator
NativeCodex86Code
x86 System DLLs
x86 System DLLs
x86 System DLLs
CHPE DLLs
CHPE DLLs
Workload Type
Expected
performance
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29. https://aka.ms/win10onarm
Visual Studio 2017
Channel 9
cobaltfeedback@microsoft.com