When upgrading a Windows node the following error is seen:
{"level":"info","ts":"2023-01-24T11:56:51Z","logger":"wc 10.0.128.7","msg":"deconfiguring"}
{"level":"info","ts":"2023-01-24T11:57:23Z","logger":"wc 10.0.128.7","msg":"deconfigured","service":"windows-instance-config-daemon"}
{"level":"info","ts":"2023-01-24T11:57:28Z","logger":"wc 10.0.128.7","msg":"removing directories"}
{"level":"error","ts":"2023-01-24T11:57:29Z","logger":"wc 10.0.128.7","msg":"error running","cmd":"powershell.exe -NonInteractive -ExecutionPolicy Bypass \"if(Test-Path C:\\var\\log) {Remove-Item -Recurse -Force C:\\var\\log}\"","out":"Remove-Item : Cannot remove
 item C:\\var\\log\\hybrid-overlay\\hybrid-overlay.log: The process cannot access the file \r\n'hybrid-overlay.log' because it is being used by another process.\r\nAt line:1 char:27\r\n+ if(Test-Path C:\\var\\log) {Remove-Item -Recurse -Force C:\\var\\log}\r\n+  
                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r\n    + CategoryInfo          : WriteError: (hybrid-overlay.log:FileInfo) [Remove-Item], IOException\r\n    + FullyQualifiedErrorId : RemoveFileSystemItemIOError,Microsoft.PowerShell.Commands.Remove
ItemCommand\r\nRemove-Item : Cannot remove item C:\\var\\log\\hybrid-overlay: The directory is not empty.\r\nAt line:1 char:27\r\n+ if(Test-Path C:\\var\\log) {Remove-Item -Recurse -Force C:\\var\\log}\r\n+                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~\r\n    + CategoryInfo          : WriteError: (hybrid-overlay:DirectoryInfo) [Remove-Item], IOException\r\n    + FullyQualifiedErrorId : RemoveFileSystemItemIOError,Microsoft.PowerShell.Commands.RemoveItemCommand\r\nRemove-Item : Cannot remove item C:\\va
r\\log: The directory is not empty.\r\nAt line:1 char:27\r\n+ if(Test-Path C:\\var\\log) {Remove-Item -Recurse -Force C:\\var\\log}\r\n+                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r\n    + CategoryInfo          : WriteError: (C:\\var\\log:Di
rectoryInfo) [Remove-Item], IOException\r\n    + FullyQualifiedErrorId : RemoveFileSystemItemIOError,Microsoft.PowerShell.Commands.RemoveItemCommand\r\n","error":"Process exited with status 1","stacktrace":"github.com/openshift/windows-machine-config-operator/pkg
/windows.(*windows).removeDirectories\n\t/remote-source/build/windows-machine-config-operator/pkg/windows/windows.go:578\ngithub.com/openshift/windows-machine-config-operator/pkg/windows.(*windows).Deconfigure\n\t/remote-source/build/windows-machine-config-operat
or/pkg/windows/windows.go:422\ngithub.com/openshift/windows-machine-config-operator/pkg/nodeconfig.(*nodeConfig).Deconfigure\n\t/remote-source/build/windows-machine-config-operator/pkg/nodeconfig/nodeconfig.go:514\ngithub.com/openshift/windows-machine-config-oper
ator/controllers.(*instanceReconciler).ensureInstanceIsUpToDate\n\t/remote-source/build/windows-machine-config-operator/controllers/controllers.go:86\ngithub.com/openshift/windows-machine-config-operator/controllers.(*WindowsMachineReconciler).configureMachine\n\
t/remote-source/build/windows-machine-config-operator/controllers/windowsmachine_controller.go:433\ngithub.com/openshift/windows-machine-config-operator/controllers.(*WindowsMachineReconciler).Reconcile\n\t/remote-source/build/windows-machine-config-operator/cont
rollers/windowsmachine_controller.go:355\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Reconcile\n\t/remote-source/build/windows-machine-config-operator/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:121\nsigs.
k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/remote-source/build/windows-machine-config-operator/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:320\nsigs.k8s.io/controller-runtime/pkg/internal/c
ontroller.(*Controller).processNextWorkItem\n\t/remote-source/build/windows-machine-config-operator/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:273\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2
\n\t/remote-source/build/windows-machine-config-operator/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:234"}

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The hybrid overlay log is unable to be deleted as it is in use by another process, most likely hybrid overlay.

The hybrid overlay log is deleted.