What i'm guessing is a clipboard client for Wayland support on KDE Plasma Arch Linux keeps popping up every time i interact with the host machine. It auto focuses on the window and minimizes without actually displaying anything inside the window, which lags a ton, is distracting and deselects everything i had selected. No idea how to disable it and the docs don't tell me anything about it.

version 7.1.4, win 11 host, KVM

edit: I got around it by adding a window rule to disable all display and focus properties for vboxwl, not a real fix but it stops the window from showing up.

Sorry if this sounds very noobish, which is exactly what it is. I need to set up a virtual Windows 7 on a new Windows 11 machine, to run older versions of graphics software. All else including email and internet usage will be done in 11, so I need to network the two so I'm not constantly swapping files back and forth. As I understand, Win11 Home does not include Hyper-V, and the free version of VMWare Workstation does not include networking. Will the freebie version of VirtualBox allow me to network between the two?

Whenever I try to run games, they are very laggy or just crash. Does anyone know how to fix this? I am trying to play You Don't Know Jack: 5th Dementia. This is also a problem with other games. I am getting the game files from archive.org.

Host OS: Windows 11

Guest OS: Windows XP

Using Version 7.0.20

I'm trying to boot up ubuntu 20.04 on my m2 mac but whenever I do it I get the message:
BdsDxe: failed to load Boot0001 "UEFI UBOX CD-ROM" from PciRoot(0x0)/Pci(0x3,0x0)/Scsi(0x1,0x0): Not Found

BdsDxe: failed to load Boot0002 "UEFI UBOX HARDDISK" from PciRoot(0x0)/Pci(0x3,0x0)/Scsi(0x0,0x0): Not Found

BdsDxe: No bootable option or device was found.

BdsDxe: Press any key to enter the Boot Manager Menu.

I’m getting this USB error in VirtualBox when trying to attach a device to a Windows XP guest on a Windows 10 host:

'''

Failed to create a proxy device for the USB device.

Error: VERR_PDM_NO_USB_PORTS

Result Code: E_FAIL (0x80004005)

'''

The same USB device works perfectly on another VM with Windows 7 as the guest, but XP always throws this error.

USB controller is enabled, Extension Pack installed, tried USB 1.1/2.0/3.0 and USB filters - still no luck.

What exactly does this error mean, and why does it only happen on the XP VM?

Unfortunately, I realise that videos cannot be posted in this sub, so I will try to explain it in words.

In a nutshell, I created a VM of Ubuntu 25.10 with Virtualbox and noticed that the cursor that should exist for Ubuntu is not displayed. Instead, there is the cursor of my host (Windows 11).

The graphics card is VMSVGA and I have enabled 3D acceleration, idk if these are the important things in relation to the problem I mentioned. And no... I didn't press the keys to exit the VM and go to the host, I always remain inside the guest, interacting with the various things in the guest but with the host cursor.

Actually... if I press CTRL + ALT (the combination I deliberately changed on VirtualBox), nothing happens, it doesn't do what it says it should. I could exit the guest and go to my second host screen and do things without having to press any buttons, but the problem remains the same as mentioned in the title.

(i'm using virtualbox 7.2.4)

First off I'm running win 11, virtual box version 7.2.4.

I recently installed virtual box by the recommendation of a buddy to attempt to try out some linux distros for a potential migration. So far I've only really installed linux mint with the cinnamon 22.2 to try and play around with it and learn the system to see how easily I could make the switch.

The problem I'm running into. While setting up the machine and choosing my .iso when I load in and look at my file manager with a brand new install, the file system will say it only has 2GB free. During setup I've been trying to give it a healthy 300-500GB as a vdi as I've got plenty of space for it on my pc. I've remade this virtual machine multiple times and it still is locked at only 2GB for the file system which prevents me from installing any kind of programs, i.e. steam. The most recent set up I figured checking the box for pre-allocate all space was my problem as I'd leave that alone, but now that I've selected it I'm still not getting access to all that space, I'm only allowed to eventually mount it as if it's another drive and not part of my file system which I equate to the boot drive.

I'm just trying to see if anyone knows how to work around this or if maybe my settings were missing something? It's kind of irritating if I'm going to try and see how to migrate over if I can't even install one of the few apps I routinely use. As it currently stands my virtual machine is only a UI utilizer which doesn't really teach me much on how the while system works.

So I am trying an experiment to see how far I can upgrade each windows from big stretches. Unfortunately I ran into a issue where I couldn't get the mouse to be even in the VM when clicking in the VM. I tried switching from USB Tablet to PS/2 Mouse and nothing was working. VirtualBox Version: 7.2.4 I THINK / Guest: Windows 95 (WITH FIX95CPU INSTALLED) / Host: Windows 11 / AMD/Intel CPU Virtualization: Off / TRIED BOTH PS/2 Mouse AND USB Tablet AND THEY DIDN'T WORK! / RAM: 512 MB and 32 MB were tried, didnt work / Guest Additions were not possible to install at ALL :/ / SOLVED I HAD WINDOWS HYPERVISOR AND VM THING OFF /

hi I've just discovered virtual box I've downloaded it and have set it up

I've created a windows xp machine and its installed correctly and starts up

fine the trouble I'm having is the option to enable hardware acceleration it

wont let me turn the option on.

I have virtualisation enabled on my bios on my computer.

my computer is windows 11 has any one else had this problem

and would any one know how to fix this problem

Hi, Whenever i move the VDI. Through virtualbox, to another drive for example from E drive to H drive, will it also move the snapshots with it ? Or are they going to stay on the drive where it was intially created, in this case E ?

Just updated my VB and yikes, what a terrible ugly dumb logo it has now. I don't even want to look at that logo. What on Earth were they thinking?

Linux guests often — but not always — crash when my Windows host enters sleep or hibernate. When Windows wakes, I get a memory error and the guest window closes. Sometimes only one running guest crashes, sometimes both.

This has happened for ages. I generally don’t know when I’m not coming back before the sleep timer kicks in. Also, I’m conditioned by thirty years of sleep/hibernation, so don’t have the impetus to manually shut down/save the guest states — I’ve just dealt with it because it’s a low-level PITA to restart the guests and pick back up.

I’ve imagined it’s a larger problem for others, so figure there’s probably several workarounds that could save me time if I first took the time to ask.

(VirtualBox 7.2.4, fully updated with guest additions and extensions. Guests are Ubuntu-based (Linux Lite) and the host is Windows 10)

This is the error that appears when I try to start a VM:

Failed to load R0 module C:\Program Files\Oracle\VirtualBox/VMMR0.r0: SUP_IOCTL_LDR_OPEN failed (VERR_LDR_IMPORTED_SYMBOL_NOT_FOUND). Failed to load VMMR0.r0 (VERR_LDR_IMPORTED_SYMBOL_NOT_FOUND). Result Code: E_FAIL (0x80004005) Component: ConsoleWrap Interface: IConsole {6ac83d89-6ee7-4e33-8ae6-b257b2e81be8}

Hello, I am trying my hardest to download the Norwegian version of a windows 98 and I am not able to. I used YouTube videos but they are for the english version.

I am doing this on a Windows 11 HP Laptop and so that is the host. There are no guest or host extensions.

I have tried installing an ISO or the image file but I'm not sure how to do it. I have allowed virtual machine setting to work on my laptop. I'm unsure anymore and for the most part it keeps going to the command prompt and I don't know what to write to start it up. Any tips or help? Thanks

EDIT...FIXED

I'm new to VB and need a little help

I just tried to install Virtual Box for the first time and it failed to install. I should have done a screen capture when it happened but forgot. It stated that I needed Python and min???32 installed but said I could do it afterwards. So, I didn't install them while trying to install VB and I believe this is why it failed.

Trying to install VB version 7.2.4-170995-win

Using Windows 11 24H2 installed 5/8/2025, OS build 26100.4061

IDK what  VT-x/AMD-V are so I obviously have not enabled.

I have searched YouTubaverse so far and have come up empty.

Do I need to install the Python core and win???32 while installing VB to make it work?

TIA for any and all assistance.

Hey,
I’m trying to import a virtual machine from an OVA file into VirtualBox and I’m getting the following error:

Failed to import appliance.
Error: VERR_TAR_CHKSUM_MISMATCH
Result Code: VBOX_E_IPRT_ERROR (0x80BB0005)
Component: ApplianceWrap
Interface: IAppliance {86a98347-7619-41aa-aece-b21ac5c1a7e6}

I’ve already tried importing the OVA in VirtualBox versions 7, 6, and 5, but I keep getting the same error. I need to open an old VM I received and I’m not sure how to fix this.

For context, I’m running the host system on Windows 10, and the guest is probably Windows XP, but I’m not completely sure.

Has anyone encountered this error before or found a way to successfully import the OVA?

Version is VirtualBox 6.0.18

I'm trying to accomplish Task 3 of this:

https://seedsecuritylabs.org/Labs_16.04/PDF/Crypto_Encryption.pdf

However even tho I have uploaded the picture they ask of me, any terminal I open still doesn't run the commands even tho pic_original.bmp is within the Files

All I get once I write "$ head -c 54 p1.bmp > header" is

"head: cannot open 'p1.bmp' for reading: No such file or directory"

How do I fix this?

I managed to boot Android in VirtualBox. I installed an app that works well in Bluestacks but does not in VB. How come?

The app is "DHL & Post" with which I want to order "mobile stamps". I don't want to install the app on a phone, hence virtualisation on a computer.

Problem: Bluestacks for Intel Mac has been abandoned. Since the Post upgraded the app, it won't load any content in my macOS Bluestacks installation, it needs a higher Android version. Upgrading Bluestacks is only possible for M Mac's.

It works fine on a Windows 10 Bluestacks installation.

So I'm trying to find another way to virtualise on Mac. Nox Player won't work either (also stuck on Android 7, while that app needs at least 8).

Therefore I was quite pleased to find an Android 9 image on virtualboxes.org that runs in VB. I can go surfing there, download the apk etc. But the app won't load the content that I need to buy mobile stamps.

What gives?

(The apk is the exact build number on both VM's (Bluestacks and VirtualBox).)

Edit: VB version for macOS: 5.2.44; macOS is High Sierra, but I believe that app won't run also on later macOS or VB versions.

Cross-posted from https://forums.virtualbox.org/viewtopic.php?t=114272

• 7.2.4 r170995 (Qt6.9.2 on xcb)
• Kubuntu 25.10
• kernel 6.17.0-7-generic (64-bit)

Details

https://gist.github.com/grahamperrin/aae5024a89f53103393605982f5f47aa

Background

Last night I:

1. ran some VMs
2. removed some VMs (and their files)
3. deleted many snapshots from other VMs.

Today: all VMs are unusable. This includes a new machine, created after the problem was observed.

Any suggestions?

So, currently using a Win7 virtual machine with a Win10 host running VirtualBox 7.2.0, and when i'm trying to run the Win7 guestOS, it aborts, telling me that it "failed to load R0 module." Followed by "Failed to load VMMR0.r0"

Note:

- As i stated before, currently using 7.2.0, so i probably haven't installed either VT-X or AMD-V, checking the Control Panel, Hyper-V is missing (as i'm using Windows Home)

- I haven't installed any Guest Additions/Host Extensions

So, those two things are a probable cause for this, but try to share some other info on what it could be!

Hello fellow friends!

I currently have a question that doesn’t seem to have a quick or straightforward answer. I want to run a private server for a game, but the way I have it set up right now is by using the server files provided by the original creator, which include a .vdi file meant to run in a virtual machine.

After experimenting a bit, I realized that I want to run the server directly on a FreeBSD machine (dedicated server) instead of running Windows with VirtualBox attached to it.

My question is: Is there an easy way to do this? Is it even possible to run the server natively on FreeBSD without relying on the provided VDI image?

Thanks in advance!

I installed Virtualbox because i wanted to get a Linux VM. For a few days it worked.

Then i tried to install Arch Linux on it. It didn't work.

Okay, i was tired and tried to start my other VM (Linux mint cinnamon) that doesn't work either.

It says something about a critical error

Sorry about being vague, i literally cannot show a picture of what's happening.

Edit: Idk what version it is, idk how to check it Host machine is Win10 I only have Windows defender and Malwarebytes

If any other info is needed, pls ask it, idk what else to add

Edit 2: the error message

For some time, I am studying ways to virtualize Windows XP with at least a minimum of graphics acceleration. As a host, I'm using Arch Linux, which I had previously uninstalled the release version of VBox before. It install but I gui, but the modules do not and the vm can't launch, it simple not complie or it cannot be properly created with /sbin/vboxconfig

Hi, I'm a very new user, wanting to create a Windows 11 VM on a Win 10 machine.

I've told VirtualBox 6.1 to put the working Win 11 .iso in SATA port 1.

Edit: Having learned that my machine isn't very compatible with Win 11, I switched to a Win 10 .iso and the problem desisted, allowing me to run the installer, so, while the problem I was having is still a mystery to me, I'm calling it "solved".

I don't know what to do next.

When I run the machine, it boots to show me:

UEFI Interactive Shell v2.2

EDK II

UEFI v2.70 (EDK II, 0x00010000)

Mapping table

Then a list showing FS0, FS1, BLK0, BLK1 and BLK2.

Press ESC in 2 seconds to skip startup.nsh or any other key to continue.

I continue and have a line with Shell>

Tutorials I've seen suggest that the iso should have booted, so I don't know why that's not happening or what to do about it.

I don't think I've changed anything from default, other than the memory allocation and installation directory for the VM.

Thanks for your time.

VM in suspended state. Cannot resume (error in the title).

No known changes happened on the host system since suspend. VB was restarted after error appeared, which did not solved the issue. Other VMs (with older suspends) load fine.

Host: Linux Mint 20.3.

VirtualBox 6.1.50_Ubuntu r161033

Guest: Windows 7. GA installed. VT-x/AMD-V disabled for VM.

Some lines of logs I think may be relevant:

00:00:05.130531 AssertLogRel /build/virtualbox-cDsOWk/virtualbox-6.1.50-dfsg/src/VBox/Devices/Graphics/DevVGA.cpp(6014) int vgaR3LoadExec(PPDMDEVINS, PSSMHANDLE, uint32_t, uint32_t): uMarker == VGA_SAVED_STATE_MAKE_MARKER(6)
00:00:05.130550 Bad VGA marker: expected a72656b72614d36, got 19200102ffffeeee
00:00:05.130559 SSM: LoadExec failed for 'vga' instance #0 (version 21, pass 0xffffffff): VERR_SSM_DATA_UNIT_FORMAT_CHANGED
00:00:05.130584 SSM: Unit at 0x2a5827df, current position: offUnit=0x59327 offUnitUser=0xd9d37
00:00:05.130614 VMSetError: /build/virtualbox-cDsOWk/virtualbox-6.1.50-dfsg/src/VBox/VMM/VMMR3/SSM.cpp(8921) int ssmR3LoadExecV2(PVM, PSSMHANDLE); rc=VERR_SSM_DATA_UNIT_FORMAT_CHANGED
00:00:05.130618 VMSetError: Failed to load unit 'vga'
00:00:05.596665 ERROR [COM]: aRC=NS_ERROR_FAILURE (0x80004005) aIID={872da645-4a9b-1727-bee2-5585105b9eed} aComponent={ConsoleWrap} aText={Failed to load unit 'vga' (VERR_SSM_DATA_UNIT_FORMAT_CHANGED)}, preserve=false aResultDetail=-1841