A virtual machine is an emulation of a guest operating system, running on virtualized hardware within a host operating system.

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Memory not releasing after shutting down vm in Xen-4.5

I installed Xen-4.5.0 on a server with CentOS 6.5(v3.2.30 kernel). All works well except when I shutdown a vm, then xl li shows that the vm's memory is not released and physical memory becomes less ...
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16 views

VirtualBox won't save screenshots

VirtualBox 5.0, Windows 8.1 x32 Guest (via Modern.IE), Windows 7 Ultimate x64 Host, on a Macbook Pro 2011. To be clear, I definitely mean screenshots. I want to take a picture of the screen, not save ...
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30 views

seting up some windows10 pro kiosks?

I have a few windows 10 PCs for student use. Previously, I had windows XP installed where I was using deepfreeze. Basically, students could use the pc, but if they encountered malicious software, ...
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2answers
22 views

How do I open a VM I received in VirtualBox?

A lady "put together a virtual machine" that was supposed to include a certain software and related packages. I was given a folder of files (vmdk, log, vmxf, plist, vmsd, nvram, and png files) and ...
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34 views

Windows doesn't detect virtualization

CPU: Intel Core i3 3220 Motherboard: P8B75-M LX (BIOS version: 1403, final) OS: Windows 10 Education 64-bit Note: I have screenshots including BIOS settings but I can't add because of reputation ...
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23 views

vm freezes when I try to install vmware tools on kali guest

When I try to install vmware tools on my kali guest, It never finishes loading the vmware tools installation. The disc icon never appears and the icons on screen, along with the menu either disappear, ...
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0answers
19 views

Dynamic DNS in Windows configured inside a Virtual Machine

honestly I'm not sure what I want is possible, but I'll ask anyway. I have a Windows 10 host, and a VMWare virtual machine with Ubuntu as guest. I use Ubuntu for web developing. I have it set up in a ...
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0answers
16 views

Aftereffects and Photoshops ui do not work in vmwere 7 in a maverick VM

so first off i will explane I set up a VM of mavericks in VMwere fusion because some of my software will not work in Yosemite and I want to upgrade so I created a legacy VM in VMwere fusion 7. ...
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24 views

How do I compress or compact encrypted virtualbox disk image

As I have created a Debian VM inside VirtualBox by encrypting their partition. So that the OS must be running in an encrypted partition. Although while creating a disk image(VHD), I had given for ...
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40 views

Could not connect Ethernet0 to virtual network “VMnet-1”

I am trying to add Windows 8 to my VM, it is showing this error. And I am not able to copy files from my actual system to this VM (Windows-8). Log entries are: 2015-08-11T11:38:03.165+01:00| vmx| ...
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33 views

Virtualbox and vagrant : cannot be closed because it is still attached to 1 virtual machines

I've been using virtual box for some time now. However, I wanted to follow a course about data science at EDX which requires to use virtual box and vagrant, which I'm still not sure what it does. If ...
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1answer
73 views

Cannot mount or move Virtual Hard Disk .vhdx file

I created a .vhdx file using disk2vhd from sysinternals, but I'm unable to use it. The virtual machine in Hyper-V won't start. I can't mount it either. I t gives me the following error even though I ...
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42 views

unable to install vmware tools on kali

When I try to install VMWare Tools on VMWare workstation, my kali guest freezes up. It never finishes installing. When I try these links it freezes midway through the steps on each of these links: ...
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1answer
37 views

How to make a VM start automatically on Windows XP?

I really like Windows XP a lot, but I want my old desktop PC to be retro, so I started using virtual machines on it. I use VirtualBox for this. This PC has: DVD/CD drive 40GB Hard drive with ...
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0answers
25 views

Increasing VHD Size in Hyper-V 2008 R2

I have a Hyper-V box which is hosting 5 virtual servers. One of the servers on the Host is currently low on disk space. I am planning to increase the VHD space on that virtual server but I am ...
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0answers
18 views

Why can't I open applications that I drag and drop onto OS X Guest VM?

I am running OS X Yosemite. I have a guest VM (Yosemite), that I would like to copy applications onto. It has the same appleID as my host VM. I drag and drop the application from the application ...
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1answer
40 views

Does Windows 10 have new features that improve performance as a guest OS in a VM?

Are there any features that were added to Windows 10 that directly improve performance (and possibly interoperability) when run as a guest in a virtual machine? If so, are these features enabled by ...
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2answers
51 views

running 64-bit Linux in Virtual box 5.0.0 on windows 7

Hi i am very new to virtual machines. I have Virtual box 5.0.0 running on windows 7 64-bit. I have installed extension packs, however when i go to set up Kali Linux 64-bit, it doesn't give me a option ...
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110 views

PsExec: Handle is invalid | Error deriving session key

While running some automated scripts I get the following error: Handle is invalid. Connecting to local system... Starting PSEXESVC service on local system... Connecting with PsExec service on XXX... ...
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1answer
69 views

VMware network adapter problems after windows update

I recently updated my pc from windows 8.1 to windows 10 and i have problem with my virtual machine(vmware). My virtual machine runs kali linux and cannot find network adapters to establish connection ...
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0answers
11 views

Unable to install in MSYS2 using Arch Linux pacman

I have installed MSYS2 on Windows and successfully used the Arch Linux pacman installer to get a bunch of programs on there (gcc puthon vim etc). Some things give a "not found" error, though, and I ...
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23 views

Port forwarding working on Virtualbox but not on VMware Workstation for Centos7 virtual machine

I'm running Windows 7. I created a Centos7 virtual machine originally through Virtualbox and successfully set up port forwarding with these rules to allow SSH and HTTP: Protocol: TCP | Host IP: ...
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15 views

How to migrate from an ubuntu server Virtualbox VM to a Vagrant box (using Chef?)?

I am using a Virtualbox VM for programming. My stack consists of Ruby/Ruby on Rails, nginx, passenger, git and is mainly used as a local developement server, hosting about ~10 websites (small, ...
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2answers
81 views

How do I virtualize a physical machine, and be able to put the image back on the real machine?

Can I convert a physical machine running Windows (XP, 7, etc) to an exact copy virtual machine, make modifications on it and be able to put it back on the physical machine if I need it? The OP adds ...
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172 views

Windows 10 and Boot Camp drivers

6th August 2015, Windows 10 has launched quite well. However, there are some people eying the new OS wit little concerns. Mine is: Will Windows 10 work on a Mac - and, that means with a few ...
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2answers
213 views

Upgrading Windows 8.1 to Windows 10 inside a VMware guest

Now I know one can tell Windows to check for the upgrade eligibility and all. That's not my problem. Yet, I'd like to move to Windows 10 with a (VMware 10 virtual hardware level) guest (running on ...
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1answer
388 views

Oracle VirtualBox - Unable to update to Windows 10

I'm using Oracle VirtualBox 5 and my virtual Windows offered an Update to Windows 10 today, but it stops saying: VirtualBox Graphics Adapter The display manufacturer hasn't made your display ...
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1answer
27 views

How to convert Dynamically Sized VirtualBox Hard Drive to a Fixed size?

I have been trying to convert the Dynamically sized hard drive to a fixed size to increase the VM box performance. I tried to follow the instruction on Convert Dynamically Sized VirtualBox VDI Hard ...
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2answers
177 views

How to stretch a guest OS on VMware?

I'm running several OSes on VMware. I want to stretch them so I can run them on full screen, but they appear only in the middle. Only one is working and fitting the whole screen. What is the problem? ...
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0answers
27 views

Disk activity to 100% with Vmware and other

I have vmware workstaion 10 and installed windows server 12 VM and I dont know why this will take my HDD to 100% activity and slow the VMs i try to use no memory trimming pre-allocate virtual hard ...
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1answer
33 views

How to setup networking for Ubuntu on virtualbox (win server 2008 R2)

I have windows server 2008 R2 and created Ubuntu virtual machine using virtual box. Now I am trying to configure networking on it to act in the same way as real PC. I can get connection to internet ...
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31 views

Virtualization solutions: linux host and windows guest

after my failed attemp of virtualizing Windows 8.1 with VirtualBox (I had many problems, starting on a poor file system which results in permission problems for IIS and many others) I'm looking for ...
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1answer
18 views

Connect virtual machines

I have a Linux machine with an IP address (for example 172.16.x.x). With some hosted virtual machines, each machine is accessed with different ssh port (eg 2230, 2234...). For instance in VM1 I have ...
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54 views

Virtualbox host io cache applying scenarios

Virtualbox docs says that using host io cache for sata controller may be a risk of system performance. At the same time, on my case I see advantage of using host io cache - DisckCrystalMark reports ...
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1answer
58 views

Convert VMDK to VHD

I need to convert a VMDK to a VHD for importing into Hyper-V. It seems that the answers to the apparent duplicate here do not help me. The Microsoft Virtual Machine Converter will only take the ...
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0answers
19 views

Can a VirtualBox VM (Windows 7) run from an external hard drive?

If so, must anything special be done to run the VM from the external hard drive, besides saving its files to the drive?
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1answer
22 views

Does VMware or VirtualBox use the same internal IP address as the host?

I would like to use my desktop computer to host a virtual local home server, and would like the internal IP addresses of my desktop computer and the virtual one to be different. Does VMware or ...
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1answer
62 views

Running a Virtual Machine and Hypervisor on the same machine

I've got a desktop and a laptop computer. Both run Intel hardware. I mainly do word processing, programming, watching videos and surfing the Internet (I don't play computer games). I would like to ...
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1answer
40 views

Virtual Machines - External Hard Drive - Windows 98

I recently bought a USB - external hard drive, is there any possibility that I can run a Windows 98 environment on it? If so, what would be the steps I need to take? Else, what requirements am I ...
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55 views

how to set environment variables in VM Fusion Windows 7

I have installed windows 7 just fine via VM Fusion, but am having trouble setting environment variables, as i cannot edit files on the C: drive. A specific example is the trouble i'm having with R ...
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1answer
15 views

VM engine that reuses installed OS

I am running a tripple-booting MacBook Pro. It boots between Ubuntu, Mac and Win7 (likely going to drop Win10 on it asap). Now I would like to do tasks in my Mac, my primary OS, while pulling updates ...
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5 views

Quick way to increase VirtualBox fixed size virtual drive space [duplicate]

I created a virtual machine on my MacBook Pro for the Windows 10 Preview. I have just moved into a Mac and wanted to continue my C# development. So I created a fixed size hard drive of the recommended ...
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18 views

Import qcow VM to kvm Virtual Machine Manager

I am able to run a qcow disk image on Ubuntu 14, by issuing the command line kvm -m 512 -usbdevice table -hda MyVM.qcow The qcow VMs were created with VirtualBox. However, if I launch Virtual ...
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1answer
9 views

2 vpn Combined..Questions

Hello so i have some theoritical questions about combining 2 vpns using a virtual machine.I whould test it my self but don't have the budget right now so my questions are: 1)If i use one vpn provider ...
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1answer
160 views

What is a virtual optical disk file and how do you create one?

I am trying to create a virtual machine using virtualBox and I have finished the whole process of specifying the size, the name, etc. However, when I try to power on the machine it tells me: ...
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1answer
35 views

How can I create a 64-bit virtual network with VirtualBox? [duplicate]

I can't find an option to install a 64-bit OS on VirtualBox. I have a 64-bit host, but I can't find an option to make a 64-bit guest, only 32-bit. Help please?
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1answer
25 views

Unable to live boot most Linux distros on VirtualBox

The host OS is Windows 7 and the machine supports virtualization which I have enabled in BIOS. (I can confirm it works because without virtualization enabled in BIOS VBox does not show 64 bit OS ...
2
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1answer
30 views

How do I get access to the file system of a stopped AWS instance (virtual machine)?

Issue: I have an AWS t2.micro (virtual machine) instance (name:webserver) set up with Ubuntu 14.04 LTS. The instance is unusable due to a configuration file that I edited improperly and saved. I ...
2
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3answers
47 views

Accidentally deleted all kernel files from /boot

I have a virtual machine (VM) running Ubuntu Server 14.04. I access the VM remotely using putty. Recently I came into a problem when /boot was 100% full. I came across numerous articles which ...
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35 views

How to execute command on host machine in Virtualbox

My guest machine is Ubuntu 14.04 and my host machine is Windows 8.1. I need to execute a command coming from Linuxmachine on Windows. What is the best idea to do that? If my host was also Linux, I ...