Windows 11 igfxext.exe Module gobbles memory

[mdds8289]

I'm on a Dell Precision 7550 with 32 GB of memory and running Windows 11 Pro v.21H2 build 22000.556.The igfxext Module gobbles up memory until there is no more. It takes about an hour to consume it all. All drivers are up to date. Dell did their best, but feels it's not a Dell issue. They suggested I reinstall Windows, which I really don't want to do.There was a Windows 11 update that coincided with the beginning of the problem. It was the installation of Cumulative Update Preview for .NET Framework 3.5 and 4.8 for Windows 11. One of the many things I t

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