Windows 10 on ARM32 runs on Surface RT and Surface 2
Despite previous statements to the contrary, Microsoft announced that ARMv7 Surface devices would remain on Windows RT 8.1 in January 2015. Following this announcement the devices were effectively abandoned.
During a security breach at Microsoft in early 2017 build 15035 of Windows 10 Creators Update was obtained, this build eventually leaked to BetaArchive on 24th November 2019. This build is currently the only leaked Windows 10 client build available for ARMv7 processors.
Although this build is not generally considered suitable for daily use, it has attracted some interest from the remaining users of ARMv7 devices as an unofficial upgrade from Windows RT.
Windows 10 build 15035 by BetaWiki, used under CC BY / Desaturated from original
The last known version of the Store to provide somewhat normal functionality is 11706.1001.26.0.
Although it is possible to install more recent versions of the Microsoft Store it will only function to install updates for apps that are manually installed or apps already purchased and available on the users account, the purchase and installation of new apps directly from recent versions of the store on this build will not work.
This build omits certain apps that were either not available for ARM (ARMv7) processors at the time or were simply excluded from the build for other reasons. Although the included apps are limited there are numerous additional apps still available as well as updates for the preinstalled apps that are compatible with this build.
In its original release the following provisioned apps are included:
The provisioned apps may be updated to the following versions:
The following apps can be installed on this build to provide a more complete and standard experience, these apps can be installed on this build without modification however it should be noted that some are and will become inoperable as the services they rely on are retired.
Internet Explorer 11 is not installed or included in the Windows image as a Feature on Demand package by default however it is available as a separate optional package on the installation media in \sources\sxs which can be installed by running the command below:
This build supports all versions of Office 2013 RT which were previously included with Windows RT, if installed on this build Windows Update will work to provide any available updates for Office 2013 RT. Activating this version of Office requires license modification.
Most software that was recompiled for jailbroken Windows RT devices will run on this build.
A list of tested games can be found here ("Cobs" @ Surface RT Dev Discord)
A list of desktop apps ported to Windows RT can be found here (GoodDayToDie @ XDA Developers)
Windows 10 build 15035 by BetaWiki, used under CC BY / Desaturated from original
App
Version
Date
Alarms & Clock
2017.203.236.0
2017-02-09
Calculator
2017.131.1904.0
2017-02-09
Messaging
3.2.2001.0
2017-02-09
Microsoft Edge
40.15035.0.0
2017-02-09
Feedback Hub
1.1611.3471.0
2017-02-09
People
2017.203.2255.0
2017-02-09
Settings
6.2.0.0
2017-02-09
Tips
4.5.6.0
2017-02-09
View 3D Preview
1.1701.30049.0
2017-02-09
Voice Recorder
2017.130.1208.0
2017-02-09
Xbox
2017.113.1250.0
2017-02-09
App
Version
Date
Alarms & Clock
10.1705.1303.2000
2018-09-08
Calculator
10.1705.21204.0
2019-05-01
Messaging
3.37.23004.1000
2019-05-22
Microsoft Edge
N/A
N/A
Feedback Hub
1.1712.1141.0
2018-04-26
People
10.2.2791.2000
2018-09-08
Settings
N/A
N/A
Tips
5.12.2691.2000
2018-09-08
View 3D Preview
N/A
N/A
Voice Recorder
10.1705.1302.2000
2018-09-08
Xbox
48.70.21001.0
2020-10-22
App
Version
Date
App Installer
1.0.32912.0
2019-10-19
Camera
2017.727.40.2000
2018-09-08
Groove Music
10.18052.11111.0
2018-06-05
Mail and Calendar
16005.11001.20116.0
2018-11-26
Maps
5.1705.1391.2000
2018-09-08
Money
4.26.12334.0
2018-08-22
Movies & TV
10.18052.10711.0
2018-06-04
News
4.25.11802.0
2018-07-03
Lens
16.0.32001.0
2020-10-01
OneDrive
17.30.3.0
2018-07-01
OneNote
16001.11629.20028.0
2019-05-05
Photos
2017.35063.44410.1000
2018-09-07
Remote Desktop
10.1.1148
2020-01-03
Skype
12.1815.210.1000
2018-10-03
Solitaire Collection
4.4.6132.0
2019-06-14
Sports
4.25.11802.0
2018-07-03
Store
11811.1001.27.0
2019-03-26
Sway
18.2003.51105.0
2020-03-12
To-Do
1.48.21892.0
2019-07-08
Weather
4.26.12153.0
2018-08-09
Whiteboard
20.11020.5479.0
2020-11-13
Wireless Display Adapter
3.4.137.1000
2019-06-07
Following the leak of this build to BetaArchive, two pre-prepared images have been distributed for Surface devices in both Chinese and English languages.
An image released in January 2020 has had its Edition modified to Windows RT 10 and Version increased to 1703 whilst retaining the original build number.
A highly modified image based on this build was released in May 2020 which has had its build number modified to 17763, while this image does contain components from later builds likely obtained from Windows PE it is in fact still build 15035.
Windows 10 build 15035 by BetaWiki, used under CC BY / Desaturated from original
Windows 10 Build 15035 contains a few notable bugs:
The User Account Control user interface is broken, leading to issues starting programs requiring administrative privileges. Disabling UAC using the registry is mandatory to run these programs, this can be achieved by applying the registry entry below:
Cameras will not work even with the appropriate app and drivers installed due a missing registry entry, this can be resolved by applying the registry entry below:
Using Microsoft Management Console (MMC) snap-ins can cause a BSOD error (PANIC_STACK_SWITCH). This issue occurs most commonly with Event Viewer and Task Scheduler while occurring somewhat less frequently with Disk Management however it may manifest at random with any MMC snap-in.
The Screen Brightness setting does not persist after a reboot and Automatic Brightness does not always function correctly.
Night Mode does not function correctly.
The background colour for windows is gray instead of white.
This build is for the most part compatible with drivers originally intended for Windows RT aside from the following exceptions:
This build technically does not support NVIDIA Tegra processors, like the ones found in the Surface RT and Surface RT 2. The sdbus driver, responsible for providing an interface layer with the eMMC dropped support for the NVIDIA storage controller during Windows 10 development. You can however replace the driver with the one from Windows RT 8.1 build 9600.16384 to make the build boot on Surface tablets. On the Surface RT 2 (may also apply to Surface RT), using a version of sdbus newer than 9600.16384 will conflict with the nvpep driver causing a BSOD error (IRQL_NOT_LESS_OR_EQUAL) on boot. Later versions of the Surface RT 2 USB recovery media in particular may contain version 9600.16497 of sdbus driver which will trigger the error.
This build does not support legacy touch drivers built for Windows 8 RTM. Loading these drivers will cause the OS to register touch inputs in the top left corner of the screen.
Numerous issues are caused when attempting to use this build beyond its expiry date due to various digital signatures being outside of the validity period, this is normal and is by design once the build reaches its expiry date or when installed after it. Examples of some of the issues caused by installing or running this build with current date set are listed below.
The legacy Windows Defender UI (MSASCui.exe) is not functional and will terminate with a critical error (0x800b0101).
The Diagnostics Troubleshooting Wizard is not functional and will terminate with a critical error (0x800b0101).
Neither Microsoft Print To PDF or Microsoft XPS Document Writer will be available after installation. Should these be required both drivers can be manually installed from \Windows\System32\spool\tools
and overriding the Driver Signature Enforcement Check when prompted.
Although it is not an edition of Windows RT, this build has inherited some of the restrictions present in Windows RT. When certain Windows RT restrictions were established they were applied not by SKU but were instead applied to a specific architecture, in this case ARM (ARMv7). Issues known to be caused by this are:
User defined start-up programs are not available.
Incoming Remote Desktop connections are not available.
Windows 10 build 15035 by BetaWiki, used under CC BY / Desaturated from original