Unable to open kernel device "\\.\VMCIDev\VMX"

[Dheeraj06041998]

Hello,

for the past few months i have been trying to figure out a solution for this problem and i really hav high hopes in this thread!

Here's the problem:-

Every time i try powering on my virtual machine it says

" Unable to open kernel device "\\.\VMCIDev\VMX": Overlapped I/O operation is in progress. Did you reboot after installing VMware Player?

Module DevicePowerOn power on failed. "

I have tried to to edit the .vmx file and replace the TRUE with FALSE next to vmci0.present and i have also tried deleting the file

PLEASE i need help really badly. Specially from the experts.

And if u think that my system doesn't support hardware virtualisation, then that's not the case because i hav previously installed the virtual machine before but i had to remove it for a few reasons! :'(

i also have another problem. i've installed vmware workstation on my external hard drive, so whenever i try to re-install or repair or uninstall my software it can't. it says that the "MSI" failed to install.

THANKS

[continuum]

the easy workaround is to simply set
vmci0.present = "false"

in the vmx-file of all your VMs

probably you will never ever need VMCI as most of the users

[Dheeraj06041998]

Hello,

Well, I just tried it and the message stops appearing.

BUT, now whenever I switch on my machine it boots up using a CD and then the apple logo(since I am using Mac OS X) appears for a second or two and then it restarts again and again until I power off the machine.

thanks

[Bernd_Nowak]

If your host is a Mac, the only VMware product seems to be VMware Fusion. Or are you using a Mac, and use Bootcamp to boot into Windows?

VMware Workstation is for Windows/Linux but not for Mac.

At least my information. Virtualbox is released for Mac.

[Dheeraj06041998]

Hello,

My host is windows 7 and i am trying to install Mac OS X using Vmware workstation.

[continuum]

that will not work - and by the way - is considered as illegal - so we are not allowed to discuss it here

[sannie]

Hi,

Could you please let me know the procedure to make vmci0.present = "false". If i close this kernal device error the virtuall machine will not start.

I thought of re-installing VMware due to this problem, but its not letting me to do that also, its showing an Error 1921: service VMware Authorization Service (VMAuthdservice) could not be stopped.

I tried all ur previous suggetions which u have given to other guys,

• to stop the VMware authorization service, but its letting me to stop. As this is a corporate laptop, I don't have full authorization I guess, only I have the authorization to install the s/w's and I can't go back to him and ask for this, as they will not agree to do so.
• Also i don have any things under SAM folder.

I use to use workstation 7, but when i upgraded it its showing a problem. Please advise how can I make this VMware workstation 8 work?

Attachment(s)

Errors.doc   480 KB 1 version

[continuum]

Hi
sorry I do not see how the authorisation service is related to the VMCI problem ???

to disable VMCI for a single VM just edit the vmx-file

[sannie]

Thank you very much for the quick reply.

Could you please advise where the vmx-file I can find. Also if possible please provide me a path for the same.

[continuum]

if you move the mouse over the VM icon in the library pane the path to the vmx-file should be displayed as a small yellow hint.-

The path to the directory where you store your VMs is something that you specified yourself ... you should know that.

If you misconfigured your explorer to hide known file-extensions the file may  be listed "name-of-the-VM" - Virtual machine Configuration file.
If your explorer is not misconfigured it will display "name-of-the-VM.vmx"

[sannie]

Sorry i did not find the file, so i was not able to change the status of it

Actually the error which i was getting is before installing the Virtual machine. Here i was trying to install the Ubuntu, After selecting the .iso file and specifying whether i want split disk or single disk and allocating the storage space, it's not starting the installation. The error pops up saying kernel device error.

Even I am unable to uninstall VMware 8, so that I could Install VMware 7 :smileysad:

[continuum]

at the moment WS 7.1.4 IMHO is the best version

I do not understand why you have problems to find your ubuntu.vmx
it should be inside the directory where you created that VM.
Without the ubuntu.vmx there would not be a VM

what happens if you try to uninstall ?
please dont use doc format to post screenshots - use *.jpg or *.png instead

[sannie]

Here I have attached the screen shots of error in .jpeg format.

Yeah WS 7 was good, but when WS 8 was installing, the older version uninstalled, now it is not allowing me to uninstall this WS 8.

[continuum]

in the 3rd screenshot you see the vmx-file
open it with a text editor and edit the line

vmci0.present = "true"

change the value to "false"

then start the VM again

[sannie]

Thank you very much :), now I m able to install Ubuntu.

[VMware Community Member]

It works:)

 

Cheers bro!!

[ZamanIT]

Dear Concern,

I've badly needed a help about the same problem...... i sent the screen sort of my problem. plz give the solution.......,

another thing is i didn't find .vxm file

thanks.

[qasriong]

I found the vmx but its a file that get me to another file...and that file does not have true or false

it goes like this:

docs then VMs then Debian 10.x 64-bit then Debian 10.x 64-bit.vmx.lck then M04698

[MasterZ123]

Thank You !!! Helped a lot

[brianez21]

Just come to thank you! :smileyhappy:

[lw4]

Thank you

it works!

[machobi]

OMG !!! Thank you so much. Setting vmci0.present = "false" is what solved my problem.

Running vmware workstation 16 pro in Windows 10 as host and Fedora 35 in the VM and around 3 weeks ago, after performing a windows update, multiple applications started having network connection issues, including vmware workstation and ALL of my VMs. But the fedora VM is the most important.

The fix was finally re-creating the VMnet0 bridge and the vmci0.present setting change to false. I've been racking my head for weeks trying to get this to work without having to reinstall windows. I know the underlying Windows update problem is still there and since I did not have a recent backup, would probably need re-install windows but so so so glad I got the fedora VM working again for now. Will worry about the rest of Windows later.

[yli3]

Hi guy,

Just set 'vmci0.present' to "FALSE" is OK, I'm sure it is useful.

However, if you wana repair or re-install your vmware, you can try my method as following.

1. delete all the vmware files manually, e.g. C:\Program Files\VMware and C:\Documents and Settings\All Users\Application Data\VMware

2. delete all the key which contains string 'vmware' from windows registry.

3. restart your computer

4. re-install the same version vmware and select 'repair' operation.

5. vmware is fixed now.

Then you can uninstall and re-install as well.

I hope it is helpful for you.

[Mohammed ElAfifi]

Thanks. That really worked.

[mattosaur4]

Also had this problem after incorporating VMWare Workstation into a captured wim for SCCM deployment.

Adding

 vmci0.present = “FALSE”

to C:\ProgramData\VMware\VMware Workstation\settings.ini

fixes it for me on all newly created VMs after deploying the image to PC's.

Matt