Broke 0.4 Vistas Fixed officially acknowledged Jul 14, 2026 their #59 worst broke on record

July's patch overheated Dells until an emergency fix arrived

July 2026 update clashed with Intel drivers, overheating some Dell PCs

The market's verdict: +2.9% on MSFT in the week after.

Status: Fixed. Working as intended, eventually.

What actually happened

The June 23, 2026 preview update (KB5095093) collided with Intel's platform framework driver on certain Dell machines, causing unexpected shutdowns, overheating and power problems, with the offending driver flagged in Device Manager for anyone who wanted a souvenir. Microsoft shipped an emergency out-of-band update on July 20. Most users had been shielded by a safeguard hold, a sentence which confirms the company knew exactly which machines would catch fire, metaphorically, mostly.

This one is officially acknowledged.

Were you affected? Unbreak it

Emergency out-of-band fix KB5121767 ↗

Windows Update → Check for updates, or download KB 5121767 from catalog.update.microsoft.com.

Links

↳ caused by KB5095093 (June 2026 preview update)

Timeline

  • Jul 14, 2026 Confirmed First reports came in.
  • Jul 20, 2026 Fixed Emergency out-of-band update shipped.