=== Description ===
OS: Windows Server 2012 R2
1. VirtualBox-5.2.6-120293-Win.exe --silent -msiparams VBOX_START=0 VBOX_INSTALLQUICKLAUNCHSHORTCUT=0 VBOX_INSTALLDESKTOPSHORTCUT=0
2. C:\Program Files\Oracle\VirtualBox\VBoxManage.exe extpack uninstall "Oracle VM VirtualBox Extension Pack"
3. C:\Program Files\Oracle\VirtualBox\VBoxManage.exe extpack cleanup
4. C:\Program Files\Oracle\VirtualBox\VBoxManage.exe extpack install %temp%\Oracle_VM_VirtualBox_Extension_Pack-5.2.6-120293.vbox-extpack --accept-license=56be48f923303c8cababb0bb4c478284b688ed23f16d775d729b89a2e8e5f9eb
After all these steps I cannot start the VM and get following error:

=== Solution: ===
1. Under C:\Program Files\Oracle\VirtualBox\drivers\vboxdrv\ right click on VBoxDrv.inf and install.After that I open a CMD and check the Service.
2. sc start vboxdrv
Is there any way to avoid this issue? I'm trying to update 4000 Machines and it's kind of too much work to do this steps manually-.
Thanks for your Help!