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POST 1962 Error after installing VMWare ESXi - ThinkCentre, ThinkStation



After installing VMWare ESXi and rebooting the system, the user experiences the following POST error:

      "Error 1962 No operating system found will reboot in 1 sec?"

Affected Configurations

The above symptom is associated with, but not limited to, the following systems:

  • ThinkCentre M62z, M72e, M72e Tiny, M72z, M78, M82, M83, M92, M92p, M92p Tiny, M92z, M93, M93p, M93p Tiny, M93z
  • ThinkCentre Edge 62z, Edge 72z, Edge 92, Edge 92z, E93
  • ThinkStation E31

Operating Systems

  • Microsoft Windows 7
  • Microsoft Windows Embedded Standard 7
  • Microsoft Windows Vista
  • Microsoft Windows XP    

To resolve this issue, the user should follow the steps below:

  1. Press F1 during POST to enter the BIOS Setup screen.
  2. Go to the EXIT tab and change “OS optimal defaults” to “Disable”.
  3. Go to the Startup tab and change “Boot Mode” to “Legacy” (the default setting is AUTO).
  4. Save changes and exit the BIOS.  (NOTE:  User may use the F10 keystroke).

If you are unable to find what you are looking for, please do try the following options:
1. Lenovo Assisted Search
2. Product usage and general troubleshooting tips
3. Lenovo Support Forum
4. Technical Support Call Centre

Country Availability
Alias ID : SF13-D0160
Document ID : HT078920
Legacy Document ID : SF13-D0160
Last Updated :
Copyright © Lenovo 2013, all rights reserved
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