Parallels Stopped Working After Upgrade Help Please!

Parallels was running fine and then after a scheduled upgrade i receive the error -

"Unable to load Parallels driver. Restart your Mac and try again" and After you click OK you get another message: "Unable to start the virtual machine. An unexpected error occurred while starting the virtual machine. Contact the Parallels support team for assistance." And VM does not start.

I googled this problem and found this info -

Check if prl_hypervisor.kext is loaded.

sudo kextstat |grep prl

You can either load it or restart your Mac:

sudo kextload /System/Library/Extensions/prl_hypervisor.kext/

I am no computer expert but i have typed these into terminal and receive the following info -

Macintosh:~ Alex$ sudo kextstat |grep prl
Password:
Sorry, try again.
Password:
94 0 0x7a5000 0x7000 0x6000 com.parallels.kext.prl_netbridge (4.0 3810.351321) <6 5 4 2>
Macintosh:~ Alex$ sudo kextload /System/Library/Extensions/prl_hypervisor.kext/
kextload: /System/Library/Extensions/prl_hypervisor.kext: no such bundle file exists
can`t add kernel extension /System/Library/Extensions/prl_hypervisor.kext/ (file access/permissions) (run kextload on this kext with -t for diagnostic output)
Macintosh:~ Alex$

When i restart the computer i just get the same problem.

Please assist ASAP as I need to use Parallels for my work.

I dont know if this is relevant but I run Parallels through boot camp.

Many thanks

 

Hi,
Could you please clarify - was it an upgrade of Parallels Desktop or upgrade of Mac OS to 10.5.7 ?

Please try for the first to uninstall the Parallels Desktop and install it again

 

Alex. Sounds like a quick repair permissions on your HD might help. Open Disk Utilities, select your HD and click repair permissions.