Microsoft has published the August 2025 non‑security preview update for Windows 11, version 24H2 — delivered as KB5064081 and shipping an updated servicing stack that identifies as OS Build 26100.5074 — packing a mix of staged AI features, UI polish, reliability fixes, and several...
ai features
ai-features
august-2025-preview
click to do
click-to-do
copilot
copilot+
copilot-plus
enterprise-it
file explorer ai
file-explorer-ai
hardware-gating
kb5064081
lcu
ndistreaming
os-build-26100-5074
passkeys
powershell 2.0 removal
powershell-2-0-removal
privacy-controls
recall
secure boot
secure boot expiry
servicing-stack-update
ssu
taskbar-search
update rings
windows 11
windows 11 24h2
windows backup for organizations
windows hello
windows-11
windows-11-24h2
windows-backup-for-organizations
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
kb5063878
known issue rollback
lcu
ndindistreaming
obs
rudp
sfc
show or hide updates
single tcp
softwaredistribution
ssu
system file checker
udp
windows 11
windows update troubleshooter
wsus