Im not exactly sure what wireguard doing to create virtual network adapters
in windows, but it's more looks like it can't handle deletion of them
properly.
This issue easy to reproduce:

   1. Create wireguard's tunnels.
   2. Connect tunnel, disconnect and remove it.
   3. Repeat it multiple times.

Windows registry will be full of wrong records of these non-existed network
connections.
And now try to open Task Scheduler and click on "Create task..." it will
crash with log:

в Microsoft.Windows.ManagementUI.CombinedControls.INetwork.GetName()
>   в
> Microsoft.Windows.ManagementUI.CombinedControls.UINetwork.GetUINetwork(INetwork
> network)
>   в
> Microsoft.Windows.ManagementUI.CombinedControls.NetworkListManager.GetNetworkList()
>   в
> Microsoft.Windows.ManagementUI.CombinedControls.ControlTaskConditions.PopulateNetworkComboBox()
>   в
> Microsoft.Windows.ManagementUI.CombinedControls.ControlTaskConditions.InitializeConditions()
>   в
> Microsoft.Windows.ManagementUI.CombinedControls.EditTaskDialog.InitializeView()
>   в
> Microsoft.Windows.ManagementUI.CombinedControls.EditTaskDialog.Initialize(UITaskFolder
> folder, String taskName, String title, UserChoice userAction,
> BaseResultsControl inOwnerView, String inXmlText)
>   в
> Microsoft.Windows.ManagementUI.CombinedControls.BaseResultsControl.CreateTask(UITaskFolder
> folder, String initialTaskName, String taskXml)
>   в System.Windows.Forms.MenuItem.OnClick(EventArgs e)
>   в System.Windows.Forms.MenuItem.MenuItemData.Execute()
>   в System.Windows.Forms.Command.Invoke()
>   в System.Windows.Forms.Control.WmCommand(Message& m)
>   в System.Windows.Forms.Control.WndProc(Message& m)
>   в System.Windows.Forms.ListView.WndProc(Message& m)
>   в System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg,
> IntPtr wparam, IntPtr lparam)
>

So ive googled solution
https://answers.microsoft.com/en-us/windows/forum/all/task-scheduler-crashed/5acab7c5-eb79-48c8-876d-ade321565953?auth=1
(Programatix message)

To resolve the problem,
>     Run regedit
>     Go to HKLM\Software\Microsoft\Windows NT\CurrentVersion\NetworkList
>     Delete everything under the following path,
>         Nla->Cache
>         Nla->IntranetEnabled
>         Nla->Wireless
>         Profiles
>         Signatures->Managed
>         Signatures->Unmanaged
>     Reboot
>

And it actually helps.
Can wireguard just properly handle this "issue" on his own and do not break
Task Scheduler application?