Applications and drivers that may not convert with virtual machines when using VMware Converter
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Applications and drivers that may not convert with virtual machines when using VMware Converter


Article ID: 337619


Updated On:





After converting a physical machine using VMware Converter, you experience these symptoms:

  • The virtual machine may experience poor performance.
  • High CPU load maybe seen within the virtual machine.
  • The virtual machine may boot up slowly or takes a long time to log in.
  • Error messages from Service Control Manager in the Event Log indicate that services belonging to drivers are not working.
  • Networking in the virtual machine may not work.
  • The mouse may not work in the virtual machine.
  • The virtual machine may fail to boot with a black screen.
  • The boot loader on the virtual machine is corrupted or invalid.
  • The virtual machine may fail to boot and comes to a blue screen with the following error:



VMware vCenter Converter 4.0.x
VMware vCenter Converter Standalone 4.3.x
VMware vCenter Converter Standalone 5.0.x
VMware Converter 3.0.x
VMware vCenter Converter 4.2.x
VMware vCenter Converter 4.1.x
VMware vCenter Converter Standalone 4.0.x


When a physical source server contains certain device drivers that are dependent on hardware, which are then virtualized, it may prevent the resulting virtual machine from starting correctly (as the hardware is no longer present).
Some applications, drivers, and utilities have known issues when they are installed in virtualized environments, but may work correctly on the source physical server.
Remove the following kinds of software prior to running VMware Converter on the source server:
  • Hardware specific software
    • Hardware-specific recovery tools or drivers
    • Some RAID management software (Intel Matrix RAID)
    • Software that installs hardware-dependent MBRs (Compaq proprietary software BIOS, some system recovery utilities)
    • IBM Open Systems Adapter (OSA) IPMI device driver (ipmi.sys)
    • Certain versions of IBM Director (twgsysin.sys)
    • usbsp.sys
    • SCSIPORT.SYS provided by Microsoft Windows 2000 SRP1 version 1
    • bitlocker provided by Microsoft Windows 7
  • Software used to manage disks below the operating system
    • Disk overlays (Ontrack Disk Manager, EZDrive)
    • Disk roll-back software (Norton GoBack, Deep Freeze)
    • Disk compression (DriveSpace/DoubleSpace)
    • Disk encryption (DriveLock, DriveCrypt)
  • Applications with known issues:
    • Symantec pcAnywhere
    • Microsoft Virtual PC Additions (virtual machines only)
    • UPS Software. This has been known to cause issues after Conversion.
VMware recommends that these applications be removed from the source prior to running VMware Converter.
If it is not possible to remove the applications listed, try running a conversion. If you are then unable to start the operating system successfully perform the following steps:
  1. Start the Windows Recovery Console.
  2. Rename or remove the offending driver files on the virtual machine, typically located in %systemroot%\system32 and %systemroot%\system32\drivers .
  3. When completed type exit to quit the Recovery Console and restart the virtual machine.
  4. Start the operating system. After the operating system has started successfully, fully remove the problematic applications by using the uninstall methods for that application.

Additional Information

For more information related to troubleshooting applications drivers that prevent successful conversion:
Troubleshooting checklist for VMware Converter
在使用 VMware Converter 时可能不会与虚拟机一起转换的应用程序和驱动程序
VMware Converter を使用した場合、仮想マシンに含まれているアプリケーションおよびドライバが変換されないことがある