Microsoft Apps Fail to Open - all with the same errors

[nschloss]

Windows apps that used to work fine, now all fail with the same errors. I've spent hours on the Internet researching a solution but have found nothing that works. I've tried replacing the kernelbase.dll file, resetting the apps, uninstalling and reinstalling and numerous other things I can no longer remember - all with no success. Seems to be a problem many folks have, though I don't see any solutions. Appreciate any help!


Here are the errors I receive using Microsoft To Do app as my example:


Event 1000 from Windows Logs / Application:

Faulting application name: Todo.exe, version: 2.29.2010.14003, time stamp: 0x5f86c986​

Faulting module name: KERNELBASE.dll, version: 10.0.19041.572, time stamp: 0x1183946c​

Exception code: 0xc000027b​

Fault offset: 0x000000000010b65c​

Faulting process id: 0x55dc​

Faulting application start time: 0x01d6af394553161a​

Faulting application path: C:\Program Files\WindowsApps\Microsoft.Todos_2.29.32883.0_x64__8wekyb3d8bbwe\Todo.exe​

Faulting module path: C:\WINDOWS\System32\KERNELBASE.dll​

Report Id: 898add08-fd61-4b1e-ba74-3950d4c4813e​

Faulting package full name: Microsoft.Todos_2.29.32883.0_x64__8wekyb3d8bbwe​

Faulting package-relative application ID: App​

Event 5961 from Microsoft / Windows / Apps / Microst-Windows-TWinUI/Operational:

Activation for Microsoft.Todos_8wekyb3d8bbwe!App failed. Error code: Unknown HResult Error code: 0x80040904. Activation phase: COM App activation​

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