Q: When starting parallels under Lion I get this message: "Your virtual machine may run slow because virtualization support is disabled on your Mac.  For optimal performance, please enable hardware virtualization support in your Mac's firmware"

I'm having the same issue,

after upgrade my iMac to Lion my Parallels stop working.

For optimal performance, please enable hardware virtualization support in your Mac's firmware.

and wont load all my work that was normal until Lion.

how do I roll back?

shall I go to a Mac store? this is critital to me.

Thanks,

Exactly where would I find this update, as Google turns up nothing and Software Update is not giving me anything for Parallels? As everyone else, I really need this working right NOW.

Thanks...

EDIT: OK, so the update is within the Parallels software itself. If there are any other numbnuts like me: Click Parallels Desktop - Check For Updates. Phew.

Message was edited by: esrasaginc

I had the same problem. I closed all desktop open in mission control and lunch the Parallels. I did the update of parallels and after all i open it. It works for me.

Glauco

Sorry, launch.

Glauco

Update from parallel works !!

I'm having the same problem.  I upgraded to Lion, which did not go well - had to take the Macbook Pro into the Apple Store and they had to wipe my machine.  When I got the machine home and restored my computer from my Time Machine Backup (using Migration Assistant) with the help of Apple Care, I found I could not get Parallels to work.  I get this message: 

When starting parallels under Lion I get this message: "Your virtual machine may run slow because virtualization support is disabled on your Mac.  For optimal performance, please enable hardware virtualization support in your Mac's firmware"

All the posts refer to upgrading to the latest version of Parallels 6, but when I try to use the Software Update feature I get this message:

Unable to save the file

ParallelsDesktop-parallels-en_US-6.0.12106.692267.dmg in /Users/michaelsafina/Downloads.

Permission denied

I have also run disk utility and run "repair permissions"

Please help!

Thanks.

Mike

This does not work for me.

When I try to update Parallels, it tells me it is already updated.

I've also run the sudo kextutil commands.

Anyone else have any ideas?