Microsoft has made the Windows 10 Insider Preview Build 18912.1001 (20H1) to Windows Insiders in the Fast ring. The new Build 18912 brings various bug fixes, performance improvements.

What's new in Build 18912.1001

Narrator Improvements

"Click me" link solution: Do you get frustrated tabbing through "Click me" links? Narrator can now tell you the title of the page that's linked to-just press Caps + Ctrl + D, and Narrator will take the URL of the hyperlink you are on and send it to an online service that will provide the page title to Narrator. If you would like to disable all online service usage by Narrator, you can turn this off in Narrator Settings. If you find links that don't give you a meaningful page title, please send us feedback. Thanks!

General changes, improvements, and fixes for PC
- We fixed an issue resulting in some Insiders experiencing unexpected green screens in the last flight which cited an error with win32k.sys.
- We fixed a high hitting DWM crash from the last two flights that was resulting in the screen frequently going black (and then everything showing again).
- We fixed an issue resulting in Focus Assist unexpectedly enabling via the full screen automatic rule for some users after minimizing all apps.
- We fixed an issue where, if you used remote desktop to connect to an enhanced session VM, the taskbar search results were not visible (just a dark area).
- We fixed an issue where certain emoji weren't being read out by Text to Speech (TTS).
- We fixed an issue where, when selecting a color filter in the Ease of Access settings, it may not have taken effect right away unless the color filters option was turned off and back on again.
- We fixed an issue where users navigating to the Graphics Settings page in the Settings application may have experienced Settings application crashes.
- We fixed an issue where double-clicking the update icon in the taskbar would result in Settings launching, then immediately crashing.
- We fixed an issue that impacted emoji panel and clipboard history reliability in the last few flights.
- We fixed an issue that caused the IME candidate window for East Asian IMEs (Simplified Chinese, Traditional Chinese, and the Japanese IME) to not appear sometimes.
- We fixed an issue where Chinese Pinyin and Wubi IME text candidates couldn't be selected by number keys in the Numpad.
- We fixed an issue where the size of tooltips for the Chinese Pinyin IME candidate window were an inconsistent font size.
Known Issues
- For Home editions, some devices might not see the "update installed" on the update history page.
- For Home editions, some devices might not be able to see the "download progress %" change on the Windows Update page.
- There has been an issue with older versions of anti-cheat software used with games where after updating to the latest 19H1 Insider Preview builds may cause PCs to experience crashes. We are working with partners on getting their software updated with a fix, and most games have released patches to prevent PCs from experiencing this issue. To minimize the chance of running into this issue, please make sure you are running the latest version of your games before attempting to update the operating system. We are also working with anti-cheat and game developers to resolve similar issues that may arise with the 20H1 Insider Preview builds and will work to minimize the likelihood of these issues in the future.
- Some Realtek SD card readers are not functioning properly. We are investigating the issue.
- There's a noticeable lag when dragging the emoji and dictation panels.
- Tamper Protection may be turned off in Windows Security after updating to this build. You can turn it back on.
- We are aware of an issue with the Bopomofo IME where the character width is suddenly changed to Full width from Half width and are investigating.
-[ADDED] Some users have experienced an error code while downloading this build due to high RAM consumption. It will slowly work through the download process, but that will take much longer than usual. If this delay will cause problems for you, you might want to skip this build. We have a fix for this issue in progress and plan to have it for you in the next build.
Known issues for Developers
- If you install builds from the Fast ring and switch to either the Slow ring or the Release Preview ring, optional content such as enabling developer mode will fail. You will have to remain in the Fast ring to add/install/enable optional content. This is because optional content will only install on builds approved for specific rings.

IMPORTANT: As is normal with builds early in the development cycle, these builds may contain bugs that might be painful for some. If you take this flight, you won't be able to switch Slow or Release Preview rings without doing a clean-install on your PC. If you wish to remain on 19H1, please change your ring settings via Settings > Update & Security > Windows Insider Program *before* taking this flight.




About Bing Insider program. The Bing Insider program was created for users who want an exclusive connection to the latest Bing news and features. You're some of our biggest fans-and the feeling is mutual.

As a member, you'll get an early look at new Bing features, access to staff, and invitations to special fan events. All we ask for in return is your feedback. You are a critical part of the Bing experience, and we welcome your input.

About Windows 10 20H1 Software Development kits (SDK). Microsoft working on feature update for Windows 10, code named 20H1, which is expected to be released in the March/April 2020 time frame. Alongside that process, they also have begun work on the next SDK that will give developers early access to the new tools and capabilities in this upcoming feature update.

For developers, a feature update to Windows 10 means new capabilities and features that can be accessed through system APIs in the updated operating system. That means time needs to be spent updating the underlying code of current enterprise, business, and consumer apps so they are ready when that next feature update is released. That is where software development kits (SDK) play a critical role as those new updates are being developed.

Microsoft knows this and alongside the Windows 10 20H1 client testing builds they release to members of the Windows Insider Program, they also make available an updated Windows 10 20H1 Software Development Kit (SDK) release. This SDK contains the new APIs for updated features and capabilities that the developer can access and put to use in their own apps as the operating system is being updated. That means once the new feature update for Windows 10 is ready, these developers can also release updated apps immediately that are ready to take advantage of those new features.

Although there is no set schedule, Microsoft usually releases new software development kits for Windows 10 20H1 following the availability of a Windows Insider Program fast ring build in the 20H1 branch. That means there is usually a one week period of time between the release of a fast ring build to testers and the availability of the new SDK release for that build.

About Microsoft. Microsoft Corporation, leading developer of personal-computer software systems and applications. The company also publishes books and multimedia titles, offers e-mail services, and sells electronic game systems, computer peripherals (input/output devices), and portable media players. It has sales offices throughout the world.

Product: Microsoft Windows 10
Version: Insider Preview (20H1) Build 18912.1001 rs_prerelease.190601-1739 *
Supported Architectures: 32bit / 64bit
Website Home Page :
Language: english, русский
System Requirements: PC **
Size: 6.2 Gb

en-ru_windows_10_insider_preview_20H1_18912.1001_32in1_x64.iso

Windows 10 Home - English
Windows 10 Home N - English
Windows 10 Pro - English
Windows 10 Pro N - English
Windows 10 Home Single Language - English
Windows 10 Enterprise N - English
Windows 10 Pro Education - English
Windows 10 Pro Education N - English
Windows 10 Pro for Workstations - English
Windows 10 Pro N for Workstations - English
Windows 10 Education - English
Windows 10 Education N - English
Windows 10 Pro Single Language - English
Windows 10 Enterprise for Remote Sessions - English
Windows 10 IoT Enterprise - English
Windows 10 Enterprise - English

Windows 10 Home - Russian
Windows 10 Home N - Russian
Windows 10 Pro - Russian
Windows 10 Pro N - Russian
Windows 10 Home Single Language - Russian
Windows 10 Enterprise N - Russian
Windows 10 Pro Education - Russian
Windows 10 Pro Education N - Russian
Windows 10 Pro for Workstations - Russian
Windows 10 Pro N for Workstations - Russian
Windows 10 Education - Russian
Windows 10 Education N - Russian
Windows 10 Pro Single Language - Russian
Windows 10 Enterprise for Remote Sessions - Russian
Windows 10 IoT Enterprise - Russian
Windows 10 Enterprise - Russian

en-ru_windows_10_insider_preview_20H1_18912.1001_32in1_x86.iso

Windows 10 Home - English
Windows 10 Home N - English
Windows 10 Pro - English
Windows 10 Pro N - English
Windows 10 Home Single Language - English
Windows 10 Enterprise N - English
Windows 10 Pro Education - English
Windows 10 Pro Education N - English
Windows 10 Pro for Workstations - English
Windows 10 Pro N for Workstations - English
Windows 10 Education - English
Windows 10 Education N - English
Windows 10 Pro Single Language - English
Windows 10 Enterprise for Remote Sessions - English
Windows 10 IoT Enterprise - English
Windows 10 Enterprise - English

Windows 10 Home - Russian
Windows 10 Home N - Russian
Windows 10 Pro - Russian
Windows 10 Pro N - Russian
Windows 10 Home Single Language - Russian
Windows 10 Enterprise N - Russian
Windows 10 Pro Education - Russian
Windows 10 Pro Education N - Russian
Windows 10 Pro for Workstations - Russian
Windows 10 Pro N for Workstations - Russian
Windows 10 Education - Russian
Windows 10 Education N - Russian
Windows 10 Pro Single Language - Russian
Windows 10 Enterprise for Remote Sessions - Russian
Windows 10 IoT Enterprise - Russian
Windows 10 Enterprise - Russian

Processor: 1.4 gigahertz (GHz) or faster.
RAM: 1 gigabyte (GB).
Free space on hard disk: 20 gigabytes (GB).
Graphics card: DirectX 9 graphics device or a newer version.
Additional requirements to use certain features.
To use touch you need a tablet or monitor that supports multitouch.
To access the Windows store to download and run apps, you need an active Internet connection and a screen resolution of at least 1024 x 768 pixels.