Parallels Error - Virtualization Support is Disabled on Mac

[kristianmartin]

I am getting the following messages when trying to run a virtual machine which has been running fine for days:

1. Your virtual machine may run slow because virtualization support is disabled on your Mac.
2. Your virtual machine will use only 1 CPU when running.
3. Unable to load the Parallels driver. Restart your Mac and try again.

After restarting, the same messages appear. I can only fix this by uninstalling, restarting, and then re-installing Parallels. I am running version 6.0.12106 (latest according to the "check for updates" feature).

Can anyone shed some light on this problem I am having?

 

[Parallels User]

I'm sorry, I can't help you any further, I think you should file a ticket with parallels support.

 

[Trefptyc]

Virtualization support is disabled on your Mac
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I support a small number of Mac Pro computers running Mac OS X 10.5.8. Ever since the 6.0.12106 build was installed, the users are receiving the following message:

Your virtual machine may run slow because virtualization support is disabled on your Mac. For optimal performance, please enable hardware virtualization suport in your Mac's firmware.

When they click, OK they receive another message:

Unable to load Parallels driver. Please restart your Mac and try again.

Unfortunately, restarting the Mac does not solve the issue. I have tried reinstalling Parallels using the same build, and that solves the problem for a day or two but, the issue always comes back. Shutting down the Mac and then turning it back works on occasion but, I do not see that as being a viable long term solution.

Any help would be appreciated.

Could you try entering Boot Flags "vm.app_mode=32"? In order to specify system flags, enter Configure->Boot Order -> Boot Flags.

Please let me know if it doesn't help

 

[TanjaH]

still not working

I tried inserting the boot flag...VM still won't start. This problem has been appearing and disappearing on its own for 3 months, every so often I just don't have access to my VM. No bueno. I have submitted a support ticket.

 

[Aruntpe]

Hi Guys,

I experienced a similar problem after upgrading from Mac OS Lion 10.8 to Mavericks. I installed parallels desktop 8. Then i downloaded the file "startpD at "http://kb.parallels.com/cn/116259". Press control and open it to install. Now both my parallels desktop, windows 8 & Mavericks works.