Microsoft has rolled out an optional preview update — KB5070312 (OS Build 22631.6276) — for Windows 11, version 23H2, delivering a focused set of quality fixes and a bundled servicing stack update that matters to anyone still running 23H2 in production, test, or Release Preview rings.
Background...
Microsoft quietly pushed an optional Windows 11 update — surfaced as KB5070312 for version 23H2 — that addresses a persistent and widely reported File Explorer responsiveness bug along with a handful of smaller, but useful, quality fixes.
Background / Overview
Windows 11 follows a staged...
Microsoft’s November 20, 2025 preview release for Windows 11, version 23H2 — KB5070312 (OS Build 22631.6276) — is a modest, quality-first cumulative update that pairs a non‑security cumulative LCU with a servicing stack update and a handful of targeted bug fixes. Delivered as an optional...
Microsoft has released KB5070312 (Build 22631.6269) to Insiders in the Release Preview channel for Windows 11 version 23H2, a focused non‑security quality update that targets a stubborn File Explorer responsiveness bug along with a handful of internationalization and enterprise policy fixes...
Microsoft has shipped KB5070312 — Windows 11 Build 22631.6269 — to the Release Preview channel, and the headline fix is simple but significant: File Explorer should stop becoming unresponsive to mouse clicks until you close and reopen it. Background
File Explorer is the single most frequently...