Thanks dalchina and Dennis. I'd somehow switched off blocking updates; it installed an older driver. I rolled back to a newer driver that allows security improvements in Windows. My laptop is a 4th Gen chip so shouldn't be on Win 11 anyway, but it works and is improving as Win 11 matures...
It was via Windows updates. I'd checked for updates and windows had reinstalled an old Intel driver for my Intel GPU. I rolled back to the latest driver. I couldn't understand why this affected Nvidia GPU.
Thanks anyway.
My Settings/System/Display Menu looks like this. Note no Brightness (should be first/top on list)
Nvidia control panel looks like this.
Brightness doesn't appear when clicking on any of the normal Taskbar Icons (Volume/ Wifi etc). In fact the popup looks like the Win 10 not Win 11)
@Try3 My...
crimp.rf.gd Privacy Defender has appeared in my Chrome. It slows the browser to zero and opens random Amazon pages. Is it a browser hijacker and how do I remove it? It's own website says to remove the extension from Chrome but I have no extension called Crimp or Privacy Defender.
Help...
I ran SFC /scannow again as Admin ,then DISM /Online /Cleanup-image /Restorehealth. It stuck on 62.3% again then completed. It might be overloaded MS servers. Thanks everybody for their input.
DISM /Online /Cleanup-image /Restorehealth won't progress beyond 62.3%. DISM /Online /Cleanup-Image /StartComponentCleanup completes 100%, so does SFC /scannow.
Any knowledge or help appreciated.