Broke 0.4 Vistas Confirmed well documented Apr 13, 2021 their #63 worst broke on record

The patch that made your GPU forget why it was hired

KB5001330 dropped game frame rates and broke NVIDIA driver installs

↳ caused by KB5001330 ↗

The market's verdict: +1.1% on MSFT in the week after.

Status: Confirmed

What actually happened

Right after April 2021's cumulative update, reports piled up of games running slower and NVIDIA driver installs failing and rolling back halfway through. Microsoft never formally admitted the performance drop. Players who uninstalled the update got their frames back, which settled the argument on its own.

This one is well documented.

Were you affected? Unbreak it

Uninstall the update ↗

wusa /uninstall /kb:5001330 /quiet /norestart

Timeline