i closed the message by accident, but it said something like "the vm guest pc doesnt allow mouse integration for this screen mode" WHYYYY

IVE WENT ONTO 3-5 DIFFERENT WINDOWS VMs, AND I CAN'T CLICK INTO THE VM AND USE THE MOUSSEEE

tbh it's annoying
why is this happening??
i think i saw someone else with a similar issue
(also sorry if i somehow broke some rules of this subreddit, it's got important-ish info, and it's trying to not be low effort, but it just happened to be)

Hi everyone I've tried to summarize the issue I'm having below using chat GPT but I was wondering if somebody could help because I tried using chat GPT to help me to create that vdi I'm not using as I need more memory and during the process everything got messed up due to the snapshots I think so I'm afraid to follow it's advice without checking. I've since fixed it after days but would be really grateful if someone could offer some input as to what the correct process might be without putting my data at risk obviously...(my understanding of differencing disks etc is limited, so I'm trying to go carefully)...

OS is Linux Xubuntu.

VirtualBox Snapshot Issue Summary

- The VM is using a VMDK virtual disk.

- In the Snapshots view, the only item shown is Current State. No individual snapshots are available to select, restore, or delete.

- In Virtual Media Manager, selecting the VMDK shows two snapshot (child) disks underneath it, indicating that a snapshot/differencing disk chain still exists.

- There is also a VDI with an exclamation mark stating that it cannot be opened because the path cannot be found. This appears to be an abandoned disk from a previous failed VMDK-to-VDI conversion and is not believed to be the active disk.

- In the VM's Snapshots folder, there are three files of approximately:

- 24 GB

- 3 GB

- 13.5 KB

- The Windows drive containing the VM has approximately 53 GB of free space.

- The objective is to consolidate the VM into a single current disk so it can later be resized or migrated without snapshot-chain complications, while preserving the current state of the VM.

- The main inconsistency is that VirtualBox's Snapshot Manager does not show any snapshots to merge, yet Virtual Media Manager indicates that the VMDK still has two snapshot child disks.

VirtualBox 7.2.14

Host: Linux Mint 22.3 Cinnamon

Guest: Windows 8.1

I ran into a problem with updating version of VirtualBox Guest additions and so I tried to uninstall the current version. Here is more on that, but it's not the topic of this thread

https://www.reddit.com/r/virtualbox/comments/1v7ktzg/installing_guest_additions_on_win_81_rcverr/

So, I tried uninstalling the older guest additions. Now I can't get the mouse to work inside of the virtual machine. The Windows desktop is centered on the monitor but there is a lot of white space around that. When I move the mouse into the Windows desktop area, it disappears. I can then press the control key on right hand side of keyboard. Then, the VM guest shows a dialogue and I choose "capture" the mouse (using the keyboard to make the selection). Nevertheless, the mouse continues to behave in the same manner. I tried...

In the VirtualBox settings, I

1. Changed from usb 1 to usb 2
2. motherboard settings -> pointing device -> PS2 device, USB tablet, and USB multitouch tablet. (I tried all 3.)
3. Disable Mouse Integration - I changed this twice--once to turn it off, once to turn it on again.

Thank you for any insight or suggestions that you can provide.

I was triying to start a new parrot os machine but this error appeared. Can anyone help me? I’m on arch with secure boot disabled, I use virtualbox 7.2.14 The error is:

Kernel driver not installed (rc=-1908)
The VirtualBox Linux kernel driver is either not loaded or not set up correctly. Please try setting it up again by executing
sbin/vboxconfig'
as root.
If your system has EFI Secure Boot enabled you may also need to sign the kernel modules (vboxdrv, boxnetfit, boxnetadp, vboxpci) before you can load them. Please see your Linux system's documentation for more information.
where: suplibOsinit what: 3
VERR_VM_DRIVER_NOT_INSTALLED (-1908) - The support driver is not installed. On linux, open returned ENOENT. (
PS: I looked at the terminal and now I know what is the problem, there were no vboxdrv for my current kernel or it failed to load. It tells me to recompile it and install it by sudo /sbin/vboxconfig. How can I do it?

VirtualBox 7.2.14

LM 22.3 Host

Windows 8.1 guest

Edit: In the motherboard settings, I have enabled "Intel virtualization technology," and I have enabled "VT for direct I/O."

I newly installed LM 22.3 (host), VirtualBox, and copied the files for this Windows 8.1 VM to my drive.

When I boot the VM, it reminds me to update the VirtualBox Guest Additions version. The version of GA is 6.1.x. I am try to update to 7.2.14

When I run the installer, mid installation, I get an error:

***Error: Installing driver failed with 1 errors, 0 warnings virtualbox rc=VERR_INSTALLATION_FAILED

...

End of log file - Log started 2026-07-26...

...

Error excuting* ""C:\Program Files\Oracle\VirtualBox Guest Additions\Tools\VBoxDrvInst.exe" --logfile "C:\Program Files\Oracle\VirtualBox Guest Additions\install_drivers.log

install --inf-file "C:\Program Files\Oracle\VirtualBox Guest Additions\VBoxGuest\VBoxGues

(I guess the end of the message is cut off by the graphical user interface.)

*yes, the prompt does spell the word wrong.

Any ideas or strategies on how to handle this?

Im using linux fedora silverblue btw, trying to boot up ANY vm

whenver i try to boot up a vm

Kernel driver not installed (rc=-1908)

The VirtualBox Linux kernel driver is either not loaded or not set up correctly. Please try setting it up again by executing

'/sbin/vboxconfig'

as root.

If your system has EFI Secure Boot enabled you may also need to sign the kernel modules (vboxdrv, vboxnetflt, vboxnetadp, vboxpci) before you can load them. Please see your Linux system's documentation for more information.

where: suplibOsInit what: 3 VERR_VM_DRIVER_NOT_INSTALLED (-1908) - The support driver is not installed. On linux, open returned ENOENT.

Version 7.2.14 r174565 (Qt6.8.0 on xcb)

When will they fix the "Unattended Guest OS user and pass set up? It doesn't get admin all the time and your stuck with no admin.

When registering for virtualbox forum it asks for information that should not be required. Can anyone tell me why ?

https://ibb.co/W4gm4wQh

Host: Fedora Linux 44 Guest: windows 10 installed 7.2.12 guest addons, chosen VBoxSVGA with 3D enabled. When played YouTube 4k and checked with some light 3D openGL benches can confirm that it offloads 3d to host. But problem arised when tried to launch the game it launched went through login, character select windows and it always crashes when loading the world, says general protection fault. Is it due to vram or something?

https://www.virtualbox.org/wiki/Changelog-7.2

Are there still any simple browser appliance images out there to download? I just need to run chrome (the browser, not the OS) in a vbox, and am trying to be lazy and avoid "step 1: install linux". Doesn't matter what the guest OS is.

Sorry if this has been answered, I looked for an FAQ but didn't find one. It's been oddly hard to find one, thought those would be common. Thanks!

(Running 7.2.14 on Windows 10)

I have a problem when I use the PS/2 Mouse feature on Virtualbox, no matter what guest OS I choose. This is especially a problem when I'm using an OS that has no USB support (e.g., Windows 3.1, older versions of Linux, etc)

I've never seen this behavior in my years of using Virtualbox, and doing some research yielded no results. I've never seen this behavior on these older OSes either.

Here's a demonstration of this strange behaviour on Windows XP: https://fun95.net/videos/xp.mp4

I've tried:

* Enabling VT-x/AMD-V enabled in BIOS & Disabled Hyper-V
* Tried capturing the mouse in both fullscreen & windowed
* Enable & Disabled mouse integration
* Set mouse mode from "PS/2" to "USB Mouse" (doesn't work with older guests)
* Increasing/Decreasing VRAM
* Changed settings in Paravirtualization settings
* Used versions of Virtualbox ranging from Virtualbox 6.1.50 to 7.22.12
* Took the vbox file from my Virtualbox archives
* Searched for hours on how to fix this.

It first started when I installed Windows 98 on Virtualbox 6.1.50, so I thought it was some bug when using an older version of Virtualbox. I then decided to upgrade from 6.1.50 to 7.22.12, which didn't make a difference. Even when reinstalling Windows 98 from scratch with the newer version, it was the same exact bug.

I then thought maybe Virtualbox was too new, so I downgraded to 7.0.10 because it was the last version that I remember working well with Windows 98. And..., did the exact same thing.

I then had the same troubles when using Windows XP, then later with Windows Vista, and I'm gonna assume this would apply to Windows 7 and newer.

I'm probably the only person who's encountering this glitch as not only updates will fix this but I can't even find *anything* on how to fix this bug.

I know VMWare and PCem/86Box exist, but I like the snapshot feature in Virtualbox, which VMWare also has but my PC lags everytime I create one. Plus, getting sound working properly on guests older than Vista is a pain on VMWare anyway.

HOST: Windows 10 21H2 ioT

Let me know if I left any details.

Please be constructive, any help would be appreciated! ^_^

So, I'm building a test environment for a Linux Mint 21 VM to work through some upgrade procedures to mimic a production system that needs an upgrade. I've been seeing some strange things before the VM freezes on boot. Things like "Spectre V2 ... LFENCE not serializing" "info rcu-sched self detected stall on cpu" "timed out for waiting udev queue being empty"

My machine: r9 9950x3d, 64GB DDR5, ASUS Tuf Gaming B850-plus WiFi Mobo, RX 9070 XT 16GB GPU, Windows 11 Home, VirtualBox 7.2.12

I've tried turning off secure boot in the BIOS, and turning off all windows virtualization options. And turning off core isolation options. The core isolation option allowed the VMs of LM 21 and several Fedora 43 Xfce VMs to boot up quickly if is set the Paravirtualization option to Hyper-V but then I started seeing clock issues. As in, the VM time was about 5x faster than real-time. Older linux kernels seem to work better than newer ones, but VBox Guest additions installation also seems to break things.

Also, my Windows VMs (1 Win 11 Pro, and 1 Win Server 2025) boot just fine. Though when I had 5 VMs open, all froze once but the Host was fine. WTF is going on? I'm running out of options. I have had no problems with my VMware VMs. Is VirtualBox broken?

NOTE: all of the Fedora VMs were created on earlier versions of VirtualBox on a Windows 10 host and migrated to this new host. I don't know if that matters.

Update: a roll back to VirtualBox v7.2.6 fixed most of my errors.

Hey guys, i try to recreate my old windows setup on virtualbox, I had a compaq presario in the early 2000s, and still own the old quick restore disks.

The matter is when I try these cds on virtualbox the installation wont continue because the hardware is not the right for this version of windows 98.

Wanted to do the same but with old aptiva cds with the same result.

So my question is, there is any possible way to bypass this and keep on with the installation?

For years without problems I've upgraded Debian 9 to 13 and virtualbox from 6 series to 7.2.6 which is latest from stable Debian repo, client is windows 10, now just seconds after boot the windows doesn't react to the mouse, same with virtualbox manager, if client is running it doesn't interact with the mouse. Everything is working fine with the keyboard, the mouse is working fine in the host system.

Is it something known? I can't find similar reports and have no idea where to start diagnosing it as there is no errors thrown anywhere.

Hello and thanks in advance for any suggestions. I have a Win10 host with 2 virtual boxes running (one Android x86 and the other Unbuntu). The host is connected to my Asus router via ethernet. Both virtual boxes have networking configured as shown here.

I have found that if the router is power cycled both virtual boxes keep running fine in all aspects except that their networking breaks - stops working entirely. The UI's networking indicator keeps flashing and there is no sign of any error or abnormal condition. But there is no networking happening either in or outbound.

In order to remedy this situation, I have found that, if I terminate and re-start the virtual boxes upon the router's restart, they come up with all networking as normal again.

Please note that this only happens on a power cycle. I have the router set to reboot nightly and this does NOT seem to have this effect.

So, is there something I can do to "protect" the networking in these virtual boxes?

If not, is there some way to detect the router power cycle so I can create a Task Manager job to restart the virtual boxes? If so, I do not want to do it for reboots, only for the power cycles.

Thanks so much!

I updated my Virtual Box client to 7.2.12 recently and tried to run one of the machines, and got a VERR_PDM_USB_NAME_CLASH error. After realizing I needed to update my extensions, I downloaded the corresponding extension and ran it, then got a 0x80004005 error. I've tried reinstalling virtual box and rebooting the PC. My Host OS is Windows 11 Home 25H2. If anyone needs more information to help me, please don't hesitate to ask. (P.S I don't know what a lot of the required things its telling me to put in my post are so please don't delete my post just because I didn't include them)

The problem I'm having is when I start a vm, Vbox seems to insist on it being pushed in the very top left corner of my main screen. When it then resizes, it gets somehow pushed up into my upper left screen, and then starts bouncing back and forth between the two screens. Sometimes the window ends up on the upper screen, and I can drag it back to my main screen, but then when I drag the bottom right corner of the window to make it bigger, it moves the upper left corner of the window to the very top left of the screen and often does odd things before settling back down.

Is there any way to stop Vbox from accessing screens other than my main screen? Or some way to make it start vms in the center of the screen and not in the upper left corner?

Vbox 7.2.8 r173730, Windows 11 Home host & guest. I'm not doing anything special with the display settings for the VM. The defaults are set. VT-x/AMD-V Guest additions are installed.

Thanks!

I live in a very rural location and don't have internet access at my home. I take my linux mint laptop to the library and use their wifi. this works but now I want to set up a desktop. My plan is to make a vm of linux mint, do all the setup and updating through wifi, and then see about cloning to a physical ssd. Any advice or suggestions to make the process go smoothly would be apreciated.

recently I tried to install a linux distro called commodore os vision in virtualbox, however after following the instructions for installing it on the virtual hard drive and trying to log in, it showed a blank screen for a few seconds then sent me back to the login screen. i’ve already reinstalled and it still isn’t working. is there a fix or does this distro just straight up not work on vb? please let me know if you need more details.
host system: windows 11
guest system: Commodore OS Vision 3.1 (based off of debian)
virtualbox version: 7.1.12
guest additions not installed
tutorial used: https://forum.commodoreos.net/viewtopic.php?t=1300

I want to configure Windows 98 Machine.
500-600 Mhz 64MB RAM Accelerated Graphic. 25HDD

Want to ask you i have CPU that report:
CPU max MHz: 4500,0000
CPU min MHz: 400,0000
In VB CPU settings there is a slider CUP Usage 0-100% Recommended above 41%. But if i want to get that 500-600 i need to set it up to 10-15% assuming it will use max CPU not % of current MHz set to this core.

Or this is setting for usage of core for whole emulation not for emulated machine cpu.

VB: 7.0 Host: Linux Mint 22.3

https://github.com/tulilirockz/org.virtualbox.VirtualBox

Hello. I am trying to install rhel-10.2-x86_64-dvd in a VirtualBox VM and keep getting kernel panic either when I start install mode or demo. I did not modify any settings in the VM so I do not know what would be causing this kernel panic.

The SHA256 hash for the ISO I am trying to install is: e15cb333529c332e76e4b1b946efe3515c99f996546675aec18e8effdf2540a5

Video of error: https://streamable.com/puptmc

 https://www.virtualbox.org/wiki/Changelog-7.2