Hi Everyone,

When I tried to update my version of VirtualBox not only did I fail to do so, but it appears to me that I corrupted my copy of VirtualBox. I tried updating from Version 5.0.0 directly to 5.0.10 on a Windows 8.1 host. Subsequently I used System Restore to undo the damage I had done. Windows reported that System Restore completed successfully. But when I tried to open one of my VMs, Windows gave me the following error in a dialog box:

"WinVerifyTrust failed on stub executable: WinVerifyTrust failed with hrc= Unknown Status 0x8009200D on 'Device\HarddiskVolume4\Program Files\Oracle\VirtualBox\VirtualBox.exe' (rc=-22919)

Please try reinstalling VirtualBox."

The Windows dialog box only gives the option "Abort", so I select that, and immediately thereafter VirtualBox always spits up the following:

Failed to open a session for the virtual machine *Ben_Xubuntu_32_Personal2*.

The virtual machine *'Ben_Xubuntu_32_Personal2'* has terminated unexpectedly during startup with exit code 1 (0x1). More details may be available in *'C:\Users\User\VirtualBox VMs\Ben_Xubuntu_32_Personal2\Logs\VBoxStartup.log'*.

Result Code:    E_FAIL (0x80004005)
Component:      MachineWrap
Interface:      IMachine {f30138d4-e5ea-4b3a-8858-a059de4c93fd}



I'm inclined to take Windows' suggestion and reinstall VirtualBox version 5.0.0, but before I risk further damage I thought I should check in this forum first. How does the following procedure look?
1. Uninstall VirtualBox.
2. Delete the contents of the folder "VirtualBox VMs" (I backed them up well before this problem) but not the folder itself.
3. Install VirtualBox 5.0.0.
4. Put my backup copies of my VMs into the folder "VirtualBox VMs".
5. Start VirtualBox.
6. Try to start my VMs.

Sincerely,

Ben Iannitelli
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