Win10 照著 5.5 教學的做法在 Vagrant up 時出現問題？

我照著5.5教學的做法在 vagrant up 時出現問題，有爬過文章但還是不知道怎麼解決？

    $  vagrant up
    Bringing machine 'homestead-7' up with 'virtualbox' provider...
    ==> homestead-7: Importing base box 'laravel/homestead'...
   There was an error while executing `VBoxManage`, a CLI used by Vagrant
   for controlling VirtualBox. The command and stderr is shown below.

   Command: ["import", "\\\\?\\C:\\Users\\pc\\.vagrant.d\\boxes\\laravel-VAGRANTSLASH-         
    homestead\\3.0.0\\virtualbox\\box.ovf", "--vsys", "0", "--vmname", "lt-
    settler_default_1503535533318_57377_1517310872767_87094", "--vsys", "0", "--unit", "9", "--disk",    
    "C:\\Users\\\u5317\\VirtualBox VMs\\lt-settler_default_1503535533318_57377_1517310872767_87094\\box-      
    disk1.vmdk"]

   Stderr: 0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
    nterpreting \\?\C:\Users\pc\.vagrant.d\boxes\laravel-VAGRANTSLASH-homestead\3.0.0\virtualbox\box.ovf...
    OK.
    0%...
    Progress state: VBOX_E_IPRT_ERROR
    VBoxManage.exe: error: Appliance import failed
    VBoxManage.exe: error: Could not create the directory 'C:\Users\?VirtualBox VMs\lt-
    settler_default_1503535533318_57377_1517310872767_87094' (VERR_INVALID_NAME)
    VBoxManage.exe: error: Details: code VBOX_E_IPRT_ERROR (0x80bb0005), component ApplianceWrap, 
    interface IAppliance
    VBoxManage.exe: error: Context: "enum RTEXITCODE __cdecl handleImportAppliance(struct HandlerArg 
    *)" at line 886 of file VBoxManageAppliance.cpp

想請問大神該如何解決？