Windows 10 build 20175.1000

10.0.20175.1000.rs_prerelease.200717-1349
	Build of Iron
OS family	Windows 10 (NT 10.0)
Version number	10.0
Build number	20175
Build revision	1000
Architecture	x86, x64, ARM64
Build lab	rs_prerelease
Compiled on	2020-07-17
Expiration date
Timebomb	2021-01-31 (+198 days)
SKUs
	Home (N, Single Language, China) ; Pro (N, Single Language, China); Pro Education (N); Pro for Workstations (N) ; Education (N); Enterprise (G, N) ; Enterprise Evaluation (N) ; Enterprise multi-session; IoT Enterprise; Team
Product key
	Use a Windows 10 Retail serial
About dialog

Windows 10 build 20175.1000 is the fifth Insider Preview build of Iron, the 21H1 development semester of Windows as a service. This build was released to Windows Insiders in the Dev Channel on 22 July 2020.

Changes[edit | edit source]

Improved quick access to tabs for pinned sites in Microsoft Edge. Clicking on a pinned site on the taskbar now shows you all of the open tabs for that site on any Microsoft Edge window. This feature is only available to a subset of Windows Insiders and requires versions 85 or higher of the browser. It would also be delivered to customers with the Windows 10 October 2020 Update.
Introduced a new command in PowerShell: Reset-AppxPackage. This command allows users to reset their UWP apps via the command line. An example syntax appears as follows:
```
Get-AppxPackage *calculator* | Reset-AppxPackage
```
It can also be used to reset system components that aren't available to select in the Settings app, such as the Start menu.

ADMX backed policies for MDM[edit | edit source]

Starting with this build, 647 new Mobile Device Management policies were added across 56 ADMX files to enable users to configure policies that are also supported through Group Policy. These contain such items such as App Compat, Event Forwarding, Servicing and Task Scheduler.

List of ADMX files that can be configured

AddRemovePrograms.admx

AppCompat.admx

AuditSettings.admx

CipherSuiteOrder.admx

COM.admx

Cpls.admx

CtrlAltDel.admx

DigitalLocker.admx

DnsClient.admx

DWM.admx

EncryptFilesonMove.admx

EventForwarding.admx

FileServerVSSProvider.admx

FileSys.admx

FolderRedirection.admx

Help.admx

HelpAndSupport.admx

kdc.admx

LanmanServer.admx

LinkLayerTopologyDiscovery.admx

MMC.admx

MMCSnapins.admx

MSAPolicy.admx

nca.admx

NCSI.admx

Netlogon.admx

OfflineFiles.admx

PeerToPeerCaching.admx

PerformanceDiagnostics.admx

PreviousVersions.admx

QOS.admx

Reliability.admx

Scripts.admx

sdiageng.admx

Securitycenter.admx

Servicing.admx

Setup.admx

SharedFolders.admx

Sharing.admx

Shell-CommandPrompt-RegEditTools.admx

Smartcard.admx

Snmp.admx

TaskScheduler.admx

tcpip.admx

Thumbnails.admx

TPM.admx

UserExperienceVirtualization.admx

W32Time.admx

WinCal.admx

WindowsAnytimeUpgrade.admx

WindowsConnectNow.admx

WindowsMediaDRM.admx

WindowsMediaPlayer.admx

WindowsMessenger.admx

WinInit.admx

Bugs and quirks[edit | edit source]

Some Microsoft Store games protected with Easy Anti-Cheat may fail to launch.
The update process to this build has a chance of hanging for extended periods of time.
The minimize, maximize, and close buttons can get stuck in their original positions if you resize a UWP app. A workaround is to move the window.
Some pinned websites do not work with the new taskbar experience.
The "close all windows" option in the taskbar sometimes doesn't close all of the open tabs.
Live preview doesn't work for pinned site tabs.
Pinned sites don't show all open tabs for a domain. A workaround with this issue is to pin the site’s home page rather than a specific page.
Performing an Alt+Tab ↹ to a browser tab can sometimes move the previously active tab to the front of the Alt+Tab ↹ list.
Opening a WSL1 distro can give out the error "The I/O operation has been aborted because of either a thread exit or an application request".

Findings[edit | edit source]

Disk Management in Settings[edit | edit source]

In build 20197, a new Disk Management experience was added to the Settings app. While it's confirmed to be internally present as far as Manganese build 19603, this is the earliest released build to already have it implemented, although it is hidden. To enable it, download the Vibranium Velocity (Vive) tool, extract the contents from the ZIP file, launch the executable from an elevated Command Prompt window, enable the following ID, and restart: 23257398. After restarting, go to Settings → System → Storage → More storage settings, and you'll see a link that says "Manage Disks and Volumes," which you can use to access the page. At this point, it mostly appears to be finished like in the final experience.