When working with the virtualization software product VirtualBox, problems and malfunctions often arise related to the installation of a particular operating system on a virtual machine. The reasons for errors in operation may be different and with one of them, which states that "hardware acceleration (VT-x AMD-V) is not available on your system", we will understand in this article.
In this case, such a problem arose when installing the Windows 8 operating system, although when installing the Windows 7 OS, such an error did not occur. How can we solve this problem? Let's find out below.
So, first of all we need to make sure that the processor supports the function VT-x/AMD-V, for this read the article How to check if your processor supports hardware virtualization Intel VT-x/VT-d and AMD-V. And to enable it, you need to go to the motherboard BIOS. To do this, reboot the computer and go to the BIOS of our system.
In order to go to BIOS, we need to press a key when turning on the computer Delete on the keyboard. (If it does not enter using the key delete try it F1, F2) When you turn on the computer, you can usually see on the start screen which key leads to BIOS.
As a result, we get into the BIOS of our computer. Next, select the tab " Advanced". There we see the tab " CPU Configuration" select it and press " Enter"
We get to the configuration menu, where we see the tab "Secure Virtual Machine Mode" opposite is the value "Disabled" what does disabled mean, we just need to enable it, to do this, click on the tab and select the value "Enabled".
As we see in the figure, the value has changed, now we need to save the changes made.
To save the changes made, go to the tab "Exit" then select the tab "Exit & Save Changes". In the window that opens where we are asked to save the changes made, click "OK" and wait until the computer reboots.
Next, open the VirtualBox program, go to " settings" the system that you wanted to install, in my case it is Windows 8.1. Click on the tab " system", further "acceleration", check the boxes next to the items indicated in the picture and click "OK."
All! The error no longer appears, you can begin the installation.
ABOUT Give your opinion about this article, and of course, ask your questions if something suddenly goes wrong for you.
Thank you for your attention!
Hello everyone In your motherboard BIOS you can find something like Intel Virtualization Technology and then you will immediately have questions, whether to enable it or not? What is this actually responsible for, what the hell, and if you turn it on, then maybe the computer will work better? Yes, there can be a lot of thoughts, when I was hacking away at the computer, studying everything, there were also a lot of thoughts, like, what will happen if...
In short, I’ll say right away, I know what Intel Virtualization Technology is, but I’ll also say that in most cases you don’t need to enable it. Neither you nor your friends, well, something tells me that you don’t really need this technology. Why do you think this? Okay, I'll tell you. This means Intel Virtualization Technology is a virtualization technology so that some software can work directly with the processor, so to speak.
You are probably asking, what other software? Here I mean computer virtualization programs, in simple terms these are virtual machines, the most popular so far are the paid VMware Workstation (by the way, there is a free option - VMware Player) and absolutely free VirtualBox. They say that the first is a virtual machine, and the second is an emulator. But I don't really understand the difference
Here's what this option looks like in the BIOS itself:
So, ordinary users don’t need Intel Virtualization Technology for nothing, it doesn’t do anything, it doesn’t add any power. You might be wondering what a virtual machine is, what is it even? This is a program that simulates a computer, but it is virtual. Here you can install Windows into it, add or remove a hard drive, set the number of processor cores, and specify the amount of RAM. Do you understand? But for such a virtual computer to work quickly, you need some kind of virtual access to the processor, and to provide this access, Intel Virtualization Technology is needed
As you already understand, this technology is found in Intel processors, but AMD also has its own, it’s called AMD-V and it’s about the same as Intel’s. Virtual machines without this technology will work terribly slowly. In general, Intel Virtualization Technology is divided into two parts, these are VT-x and VT-d, that is, if you see such designations, you now know what it is. I already wrote about what VT-x and VT-d are here, so you’re welcome to read.
In general, the other day I encountered such a problem as the inability to run guest operating systems on a virtual machine. More precisely, I could not run 64-bit systems, although my processor fully supports such systems. Also, there was a problem with launching a Linux distribution from a flash drive, the same problem appeared.
After searching the Internet one night, I discovered a certain parameter called Virtualization Technology, which turns on virtualization technology. It is activated in the BIOS. Thus, if you activate it, you will be able to use guest systems on virtual machines such as others without any problems. Basically, this function does not affect the operation of the system; by default, it is disabled (Disabled).
In different BIOS systems it may have different names, for example, Virtualization, Vanderpool Technology, VT Technology.
So, hardware virtualization, we realized that it provides support with special features. Processor architecture. There are two virtualization technologies: AMD-V and Intel-VT.
AMD-V– this technology also has the abbreviation SVM (Secure Virtual Machines). IOMMU input/output technology. It turns out that it is even more efficient than Intel-VT.
Intel-VT (Intel Virtualization Technology)– this technology implements virtualization of real addressing. May be abbreviated as VMX (Virtual Machine eXtension).
I will not describe in detail what these technologies mean, since a lot of information has been written about this on the Internet.
How to enable Virtualization Technology?
Well, actually, everything is very simple here. First you need, and then find the item Virtualization Technology, it may be called a little differently, as I wrote above, for example.
In different types of BIOS, the item may be located in different places, for example, in the BIOS from AWARD and Gigabyte motherboards you will see it as soon as you get into the BIOS, to enable it, you just need to move the parameter to the position "Enabled".
In the BIOS of American Megatrends Inc, this technology is enabled by default and is located in the "Advanced". There you can enable or disable it.
In the BIOS of some HP (Hewlett-Packard Company) laptops and the BIOS InsydeH20 Setup Utility, the virtualization feature is disabled. To activate it you need to go to the tab "System Configuration".
In versions, this parameter can be found on the tab "Advanced".
How to enable virtualization in BIOS - you've probably already asked this question. Other users may have heard about virtualization technology, but do not know what benefits it provides and what it involves. We will try to consider these questions in this article.
First of all, what does the concept of virtualization mean? Virtualization in computer technology means modeling hardware using software methods. With the help of virtualization technology, you can create several virtual computers, that is, computers simulated by software, using only one single, sufficiently powerful physical computer.
Key benefits of virtualization:
- Improving hardware efficiency
- Reducing material costs
- Optimizing resource allocation
- Increased work safety
- Simplified administration
- Increased reliability
To create virtual systems, special software called a hypervisor is used. However, due to a number of features of older Intel architecture processors, the hypervisor was not able to make the most efficient use of their computing power to create virtual machines.
Therefore, leading PC processor developers, Intel and AMD, have developed so-called hardware virtualization technology, which optimizes the performance of processors in such a way as to significantly improve the efficiency of virtualization software. Intel's version of hardware virtualization support technology is called Intel-VT, and AMD's version is called AMD-V.
Virtualization support
Since hardware virtualization technology is embedded in the central processor, in order for a user to take full advantage of the benefits provided by virtualization, it is necessary that his computer supports this technology at the processor level. In addition, technology support from the BIOS and operating system is also required. In BIOSes that support hardware virtualization, the user has the ability to enable or disable virtualization support in BIOS Setup. Please note that there are chipsets for motherboards based on AMD processors in which virtualization support cannot be disabled.
Enabling virtualization in BIOS
So, how to enable virtualization in BIOS? To enable or disable virtualization in the BIOS, there is a special option Virtualization Technology. Typically you can find this option in the BIOS Chipset or Processor sections.
Typically, setting the value to Enabled allows you to enable hardware virtualization, and setting the value to Disabled turns it off. It should be kept in mind that enabling the option only affects the performance of virtual machines running within the hypervisor and does not in any way affect the performance of regular operating system programs. We discussed this option in more detail in the corresponding article.
Conclusion
Virtualization is a powerful tool that allows you to expand the capabilities of computer systems and make the most efficient use of existing hardware. Most modern computers have solutions built into the processor that can improve their performance when using virtual machines. In addition, most computers based on Intel and AMD processors can be configured to support hardware virtualization.
