after installing Hyperv role on Dell 755 box when we are unable to start the virtual machine
in the event veiwer we get errors like
Log Name: System Source: Microsoft-Windows-Hyper-V-Hypervisor Date: 4/22/2008 5:41:08 AM Event ID: 41 Task Category: None Level: Error Keywords: User: SYSTEM Computer: Computername.domain.local
Description: Hyper-V launch failed; Either VMX not present or not enabled in BIOS.
Go into the Bios
1)under Security -Execute Disable- set to Off
2)under Performance -Virtualization- set to Off
3) under Performance -VT for Direct I/O Access - set to Off
4) under Performance -Trusted Execution -set to Off
click on escape select Save and exit option as soon as we select that Hard boot the box off
turn on the box
1)under Security -Execute Disable- set to ON
2)under Performance -Virtualization- set to OFF
3) under Performance -VT for Direct I/O Access - set to OFF
no boot up normally and the issue should be resolved