Get-ComputerRestorePoint : AccŠs refus‚ 
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+ Get-ComputerRestorePoint
+ ~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation : (:) [Get-ComputerRestorePoint], ManagementException
    + FullyQualifiedErrorId : GetWMIManagementException,Microsoft.PowerShell.Commands.GetComputerRestorePointCommand