Windows 11 Windows Sandbox failed to initialize, Error 0x800700cb

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RandomWindowsUser4096

Hi, I started getting the following error every time I try to start Windows Sandbox on Windows 11: Windows Sandbox failed to initialize. Error 0x800700cb. The system could not find the environment option that was entered. It used to work fairly recently, and I don't recall doing anything unusual that could have caused this. There's a new CPU, Intel i9-13900KS, but it supports virtualization and I have a vague memory of Windows Sandbox working after I first installed it. I also don't know how to solve this without trying to reset the Windows installatio, even though I'm an advanced user. S

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