UPDATE 4/10: We have released KB4100375 (OS Build 17133.73) to Windows Insiders running Build 17133 in the Fast, Slow, and Release Preview rings. This update includes the following quality improvements (no new OS features):

Addresses a PDF security issue in Microsoft Edge.

Addresses an issue that, in some instances, prevents Internet Explorer from identifying custom controls.

Security updates to Internet Explorer, Microsoft Edge, Microsoft scripting engine, Windows kernel, Microsoft graphics component, Windows Server, Windows cryptography, and Windows datacenter networking.

UPDATE 4/9: We are continuing to test our targeting and as a result, not all Windows Insiders in the Release Preview ring will see Build 17133 offered at this time. We’ll update this post when full availability is reached.

UPDATE 4/5: We have released Windows 10 Insider Preview Build 17133 (RS4) to Windows Insiders in the Release Preview ring. Not all Insiders in the Release Preview ring will be immediately targeted to receive this flight. We are targeting full availability to Release Preview Monday 4/9. However, if you’d like to install immediately, a manual check for updates under Settings > Update & Security > Windows Update will present the build.

UPDATE 3/30: We have released Windows 10 Insider Preview Build 17133 (RS4) to Windows Insiders in the Slow ring. As part of this flight, we are testing the engineering systems responsible for the deployment of Windows 10 feature updates to customers. As such, not all Insiders in the Slow ring will be immediately targeted to receive this flight. We are targeting full availability to the Slow ring on Monday 4/2 however, if you’d like to install immediately, a manual check for updates under Settings > Update & Security > Windows Update will present the build.

NOTE: It will be listed as “Feature update for Windows 10, version 1803”.

Hello Windows Insiders!

Today, we are releasing Windows 10 Insider Preview Build 17133 (RS4) to Windows Insiders in the Fast ring.

Just like in Build 17128, you will also notice that the watermark at the lower right-hand corner of the desktop has disappeared in Build 17133. Again, we are in the phase of checking in final code to prepare for the final release.

General changes, improvements, and fixes for PC

We fixed an issue resulting in certain devices with BitLocker enabled unexpectedly booting into BitLocker recovery in recent flights.

We fixed an issue resulting in not being able to change the display resolution when there were 4 or more monitors connected, due to the confirmation prompt hanging when you selected “Keep changes”.

We fixed an issue where clicking suggested search terms when typing in the Microsoft Edge URL bar didn’t do anything.

Known issues

There are currently no major known issues for this flight however if any issues are discovered based off Insider feedback, we’ll add them here.

No downtime for Hustle-As-A-Service,

Dona <3