Recently I installed VirtualBox 6.1 on my MacBook Air and installed Windows 10 on it (https://developer.microsoft.com/en-us/microsoft-edge/tools/vms/), but somehow the sound on my guest Win10 is not working. I managed to dig for some info and found out that I need to install (https://www.realtek.com/en/component/zoo/category/pc-audio-codecs-ac-97-audio-codecs-software) but it does not work. Could anybody help me with this one?
EDIT: I get the error when I hover over the sound icon: "no audio output device is installed"
Fixing the sound on guest windows 10 where the host is Linux / Mac
Open the settings for your Windows 10 machine inside of virtualbox
Go to Audio > Host Audio Driver, change to "ALSA Audio Driver"
Go to Audio > Audio Controller, change to "ICH AC97"
Enable Test Mode on Windows 10 and reboot machine.
Download and install the Realtek driver for Vista/Win7 (32/64 bits) Driver only (ZIP file) from here and reboot your Windows 10 machine.
Disable test mode from the link in 4th step then reboot your Windows 10 machine.
In case you still have a crackling / popping sound
In the task bar, right click on the sound icon and choose playback devices
Double click on Speakers
Select the Advanced Tab
Set the Default Format to 16 bit, 44100 Hz (CD Quality)
In the Exclusive Mode, Uncheck the Allow applications... etc
Select the Enhancement Tab
Check the Disable all sound effects
Make sure you click apply then OK
The crackling sound would immediately disappear but you could reboot just to verify.
I tried the route in the most upvoted answer but couldn't get Win10 to install the AC97 driver. For me the solution was much simpler: select Audio Controller "Intel HD Audio" in the virtual machine settings (and leave Host Audio Driver to whatever the default was, in my case "Pulse Audio"). Enable Audio Output checked of course, and it should just work like the machine has a sound card.
Crackling is still there even with the stuff about turning off enhancements and exclusivity, but I think that's not going away since I'm trying to play 1080p video and I don't think the virtual machine has quite the kind of video hardware access (and memory allocation) that it needs to play this level of content perfectly smoothly.
Install Guest Additions if you haven't already. More info here for your specific case: https://www.virtualbox.org/manual/ch04.html#additions-windows
Host Linux Mint. Guest Win10. Had 'Guest Additions' installed, 'Host Audio Driver: Pulse Audio', 'Audio Controller: Intel HD Audio'. Sound in Win10-guest, but not in Commandos 2 or Patrician 3.
Installed Realtek drivers (https://realtek-download.com/wp-content/uploads/2014/07/6305_vista_win7_pg537.zip (thank you Wil)). Still no dice.
Win10 said: "No output devices found".
Changed Host Audio Driver to ALSA Audio Driver. And it worked! Thanks everybody.
With Fedora 36 host and Windows Server 22 Standard Desktop Evaluation as guest inside VirtualBox 6.1.34 it automagically worked after enabling sound at guest via:
Mouse Right Klick at (disabled) speakers symbol in Windows taskbar
Mouse Left Klick at "Sounds" (German)
-> See Screenshot
Accepting the prompt enabled sound with all default settings in VirtualBox VM Audio Settings:
Host Driver: ALSA Audio Driver
Controller: Intel HD Audio
VirtualBox 6.1.34 Oracle VM VirtualBox Extension Pack was also already installed here.
Sound tested successfully with Firefox 100 and https://fip.fr -> Rock
I make a small c++ program on Ubuntu 14.04 virtual machine (run by VMWare) to draw some PNG files to framebuffer "/dev/fb0".
I expect content of the PNG files will be displayed on a window on Ubuntu.
But after i run program, VMWare switch to other screen (see the picture1.png below)
Then, if i make the VMWare full screen, the VMWare switch back to screen of Ubuntu (see the picture2.png below)
Are there something wrong when run Ubuntu virtual machine by VMWare ?
I have solved my problem.
Basically, content of /dev/fb0 not diplayed on x window but displayed on virtual console.
I have to switch to virtual console by press 'Ctrl + Alt + F1', then run my program. After that my PNG files displayed Ok.
I have windows 10 as guest PC. Problem is that I can't change window resolution in guest PC. Guest Addtions are installed but nothing is changed when I choose any of resolutions above 1024*768. I have installed 5.1.6 version of virtual box.
UPDATED: I have restarted my PC and resize screen works fine.
I recently installed windows 7 on VirtualBox and installed battle.net.
When I start battle.net I get this error: http://i.imgur.com/006cpRC.png
I googled a lot but I was not able to find an anwser :/
Also tried to put Windows 7 on VMWare but that resulted in me getting the same error.
Before this I tried downloading the driver for the GPU I have but then I get this error, http://i.imgur.com/kMacwB8.png
Hope you guys can help me :)
You may need to enable 3D acceleration on VirtualBox. By default it is disabled.
The steps to enable:
Right click the Windows 7 VM in Virtual Box and click Settings.
Click the Display category.
Check Enable 3D Acceleration and increase Video Memory as needed.
Install drivers:
While the VM is running, click Devices menu and then Install Guest Additions
Click Run VBoxWindowsAdditions.exe in the popup and run through the installer.
See: http://www.howtogeek.com/124479/how-to-enable-3d-acceleration-and-use-windows-aero-in-virtualbox/ for extra information.
Note that the article states the 3D acceleration is experimental and should run older games, but possibly not newer games. The article was written in 2012, so I'm not sure what the current state is. You should be able to tell if it's enabled by whether or not the Aero interface is usable.
I am running windows 7. I have just finished downloading and converting (using vmware converter) the Windows XP Mode vmware image to a .vmx file for vmware player.
I can then play the Windows XP image fine in VMWare player. There is however and issue where the windows xp screen inside vmware does not take up the whole screen. In face it only takes up a very small area. I've read on some forums that this might be a compatibility issue between windows 7 and windows xp.
Does anyone know how to fix this please?
Install VMWare Tools on the guest XP machine and bounce it. It contains several virtualization drivers among them one for the virtual graphic card. This allows you to dynamically change the screen resolution of the guest, just by resizing the VMWare Player window.