无法在PowerShell中初始化磁盘:初始化 – 磁盘抛出“磁盘已经初始化”

我试图使用PowerShell将闪存驱动器的分区样式更改为GPT,但cmdlet抛出“磁盘已经初始化”(即使我已经清理了驱动器):

PS C:\WINDOWS\system32> Clear-Disk 5 -RemoveData -RemoveOEM PS C:\WINDOWS\system32> Get-Disk 5 Number Friendly Name OperationalStatus Total Size Partition Style ------ ------------- ----------------- ---------- --------------- 5 UFD 2.0 Silicon-Power16G USB Device Online 15.14 GB MBR PS C:\WINDOWS\system32> Initialize-Disk 5 -PartitionStyle GPT Initialize-Disk : The disk has already been initialized. At line:1 char:1 + Initialize-Disk 5 -PartitionStyle GPT + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (StorageWMI:ROOT/Microsoft/Windows/Storage/MSFT_Disk) [Initialize-Disk], CimException + FullyQualifiedErrorId : StorageWMI 41001,Initialize-Disk 

我怎样才能初始化磁盘,以便我可以重新初始化它?

PS -PartitionStyle MBR显示相同的错误。