Disappearing sound and taskbar icons

Hi.

Problems since the last update on:

Edition Windows 11 Pro

Version 25H2

Installed on ‎25/‎04/‎2026

OS build 26200.8246

Experience Windows Feature Experience Pack 1000.26100.297.0

Initially, sometimes the task bar items disappeared although still present, and sound failed while waking from sleep.  Computer wouldn't boot 1st attempt but would on 2nd attempt.  This occurred after every shutdown.

Secondly, graphics started to stutter and lag in Brave but not Edge or Chrome.  This developed to everything systemwide stuttering, lagging and slowing down.  Installing a 5 year old graphics driver sorted the problem until the next reboot when the device manager showed a problem with the driver and system slowdown re-occurred.

Reinstalling the operating system has cured the lag and stuttering, but sound still disappears randomly after sleep and taskbar icons still disappear, although they came back when I opened settings.

Yet another dodgy update, it has become a regular occurrence.