Microsoft pushed a focused Release Preview package on December 1, 2025 — KB5070311 — that updates Windows 11 on both the 24H2 and 25H2 servicing tracks (OS Builds 26100.7309 and 26200.7309) and pairs modest but widely useful UI polish with device‑gated Copilot+ improvements and an important...
accessibility
aggiornamenti preview
copilot
darkmodedarkmodepolishdarkmode regression
driver issues
explorer
file explorer
file explorer fixes
interface regression
kb5070311
known issues
lsass
on-device ai
preview
release preview
software update
stabilità lsass
ui regression
virtual workspaces
white flash
windows
windows 11
windows 11 darkmode
windows 11 preview
windows studio effects
