Microsoft has confirmed that the August 12, 2025 cumulative update for Windows 11 version 24H2 (KB5063878, OS Build 26100.4946) is failing to install on enterprise-managed devices when delivered via WSUS and SCCM, producing the Windows Update error code 0x80240069; Redmond is rolling a temporary...
0x80240069
enterprise it
group policy
intune
kb5063878
kir
known issue rollback
manual install
mecm
microsoft release health
os build 26100.4946
registryoverride
sccm
servicing stack update
update troubleshooting
windows 11
windows update
wsus
Microsoft has confirmed that the Windows 11 August 2025 cumulative update (KB5063878) is causing installation failures in certain enterprise scenarios and has pushed an emergency mitigation while engineers work on a permanent fix. The issue surfaces as error code 0x80240069 when updates are...
0x80240069
certenroll
enterprise it
event viewer
kb5063878
kir
known issue rollback
mecm
media creation tool
microsoft update catalog
powershell
registryoverride
release health
sccm
update failures
windows 11
windows 11 24h2
windows update agent
wsus
wuauserv
Microsoft's August cumulative for Windows 11, KB5063878 (OS Build 26100.4946), is rolling out as a mandatory security update but is triggering a fresh wave of update failures in managed environments — most commonly a WSUS/SCCM download crash flagged with error code 0x80240069 — and...