The August cumulative update for Windows — most notably KB5063878 (Windows 11 24H2, OS Build 26100.4946) and companion rollups for Windows 10 — has been identified as the root cause of a wave of streaming and system problems that emerged in mid‑August and persisted into September, producing...
access manager
audiovideosync
kb5063878
multi-pc-streaming
ndi
ndi tools
network
obs
patch
release health
rudp
single tcp
storage issues
streaming-optimizations
streamlabs
twitch
udp
windows 10
windows 11
youtube video
Microsoft’s September Patch Tuesday delivers a surgical corrective: the cumulative updates released on September 9, 2025 refine the User Account Control (UAC) behavior introduced in August and restore expected installer and streaming behavior while preserving the security hardening that closed...
active setup
admin guidance
cve-2025-50173
microsoft patch
msi
msi repair
ndi
obs
patch
pro
rudp
sccm
securerepairpolicy
securerepairwhitelist
security updates
streaming
uac
uac prompts
windows 11
windows installation
Microsoft’s September Patch Tuesday has quietly closed two disruptive Windows regressions introduced in August — one that interfered with MSI-based app installs by unexpectedly surfacing User Account Control (UAC) prompts for standard users, and another that crippled NDI-based streaming...
cve-2025-50173
it admin
kb5065426
kir
msi
msi allowlist
ndi
ndi performance
obs
patch
patch tuesday 2025
release health
rudp
screen capture
streamer
streamlabs
uac
windows 10
windows 11
windows 11 24h2
Microsoft’s September Patch Tuesday delivers a targeted corrective for two of the most disruptive regressions reported by end users and IT teams over the last month: the unexpected UAC prompts and MSI repair failures that blocked non‑admin workflows, and severe stuttering in NDI-based streaming...
The August cumulative for Windows 11 quietly handed broadcasters and multi‑PC streamers a live‑production headache: after installing KB5063878 (Windows 11 24H2) — and companion Windows 10 rollups — NDI‑based feeds began stuttering, dropping frames, and producing choppy audio/video, effectively...
Microsoft’s August cumulative update for Windows 11 has introduced a painful wrinkle for broadcasters and multi‑PC streamers: NDI‑based feeds using the protocol’s default Reliable UDP (RUDP) transport began exhibiting severe stuttering, dropped frames, and choppy audio/video, forcing producers...
If uninstalling KB5063878 on Windows 11 throws the installer error code 0x800f0905, there are practical, verifiable steps that will usually get you past the failure — but the decision to remove the patch has to be weighed carefully because the August cumulative update in question has been tied...
0x800f0905
catroot2
dism
hide updates
kb5063878
known issue rollback
lcu
ndi
ndi-streaming
obs
rudp
sfc
single tcp
software distribution
ssu
system file checker
udp
update issues
windows 11
wsus
Microsoft has confirmed that its August 12, 2025 cumulative updates introduced a serious regression that causes severe stuttering, lag, and choppy audio/video in NDI‑based streaming workflows on affected Windows 11 and Windows 10 builds — a defect tied to NDI’s default RUDP (Reliable UDP)...
av
av production
broadcast
broadcasters
extended security updates
it administration
kb5063709
kb5063878
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ndi
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ndi tools
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obs
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patch
release health
rudp
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security updates
single tcp
streaming
streaming stutter
udp
video latency
vmix
windows 10
windows 11
windows release health
Microsoft has acknowledged a confirmed regression in its August 2025 cumulative updates that can produce severe stuttering, lag and choppy audio/video in NDI‑based streaming workflows on machines updated to Windows 11 version 24H2 and certain Windows 10 servicing branches. Background / Overview...
Microsoft’s August cumulative updates have introduced a hard-to-ignore problem for streamers and live‑production teams: NDI streams that previously ran flawlessly on local networks now stutter, drop frames, or produce choppy audio after installing KB5063878 (Windows 11) or KB5063709 (Windows...
broadcast
kb5063709
kb5063878
live production
ndi
ndi tools
obs studio
patch
receive mode
release health
rudp
single tcp
streaming
udp
vmix
windows update
Microsoft has acknowledged a new, practical regression introduced by the August cumulative update for Windows 11 (KB5063878) that can cause severe stuttering, dropped frames, and choppy audio/video in NDI‑based streaming flows — a problem that disproportionately affects multi‑PC capture and...
enterprise it
kb5063878
live production
ndi
ndi regression
ndi tools
obs studio
patch
receive mode
release health
rudp
sccm
screen capture
storage regression
streaming
tcp/ip
udp
windows 11
wsus
The August 2025 Windows 11 cumulative update (KB5063878, OS Build 26100.4946) introduced a networking regression that is causing severe stuttering, lag, and choppy audio/video in NDI-based streaming workflows — a problem Microsoft has confirmed and that currently requires configuration...
Microsoft has formally acknowledged that its August 12, 2025 cumulative security update is responsible for severe stuttering, lag and choppy audio/video in NDI-based workflows on affected Windows 11 and Windows 10 builds, and vendors and community engineers have published an immediate—but...
audiovideosync
av production
broadcast
kb5063709
kb5063878
known issue rollback
latency
ndi
ndi access manager
ndi stuttering
ndi tools
ndi workflow
ndistability
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network transport
obs
obs studio
patch
patch tuesday 2025
release health
rollback
rudp
screen capture
security updates
single tcp
streaming
streaming issues
stuttering
udp
vendor management
vmix
windows 10
windows 11
windows release health
wsus
Microsoft has acknowledged that this month’s cumulative update has an ugly side effect for creators and broadcasters: Windows 11 and Windows 10 systems that installed the August 12, 2025 security patches can exhibit severe stuttering and choppy audio/video in popular streaming tools that rely on...
broadcast workflow
kb5063709
kb5063878
low latency streaming
microsoft
ndi
ndi tools
ndi transport
obs studio
patch
release health
rudp
screen capture
streaming
streaming stability
tcp/ip
udp
windows 10 22h2
windows 11 24h2
windows update
Microsoft has acknowledged two separate issues introduced by the August cumulative update for Windows 11 version 24H2 (KB5063878): an AutoCAD launch problem that triggers an unexpected administrator permission prompt, and a streaming regression that causes severe lag or stutter in NDI-based...
Microsoft has confirmed that its August 2025 security updates can break NDI-based streaming on affected Windows PCs, producing severe stutter, dropped frames, and choppy audio/video when Network Device Interface (NDI) is used with its default Reliable UDP (RUDP) transport — a regression that...
broadcast tech
it admin
kb5063709
kb5063878
live production
ndi
ndi access manager
ndi tools
network transport
obs
real-time video
rudp
screen capture
single tcp
streaming
udp
vmix
windows 10
windows 11
windows update
Microsoft has confirmed that the August cumulative security update for Windows 11 (KB5063878, OS Build 26100.4946) is causing severe stuttering, lag, and choppy audio/video when using NDI-based streaming flows — an issue that hits production tools such as OBS and NDI Tools and has forced...
broadcast
kb5063878
kir
ndi
ndi access manager
ndi tools
network transport
obs
os build 26100.4946
release health
rudp
screen capture
single tcp
streaming
transport modes
udp
update management
video production
windows 11
wsus
The August 2025 Patch Tuesday cumulative for Windows 11 (KB5063878) has introduced an unexpected and painful wrinkle for live broadcasters: NDI-based streaming through OBS and other production tools can stutter, lag, and drop frames — even on healthy networks — and Microsoft has acknowledged the...
broadcast
it administration
kb5063878
known issue rollback
multi-pc workflows
ndi
ndi access manager
ndi receive mode
ndi tools
obs
patch
rudp
screen capture
streaming
streaming stutter
tcp/ip
udp
video over ip
windows 11
windows update