#Download virtualbox org slow manual#

Only if you remove all the Hyper-V stuff from Windows does Virtualbox use its own virtualization engine, see the icon below in the image. If this is visible, Virtualbox uses components from Hyper-V, with which, for example, the Windows Sandbox also runs. If you take a closer look at the virtual machine window, you might see a turtle icon in the lower right corner.

Oracle did not place this notice for fun (c) PCtipp.chĪlthough my accusation of “no indication” needs to be put into perspective a little. Less nice, however, that Virtualbox never displayed a corresponding message while I was struggling with the virtual machines.

#Download virtualbox org slow manual#

The briefest text in the manual is accompanied by a note that (translated) reads roughly: When using this feature, some hosts experience significant virtual machine performance degradation. The Extension Pack binaries are released under the VirtualBox Personal Use. See this chapter from the User Manual for an introduction to this Extension Pack. Support for USB 2.0 and USB 3.0 devices, VirtualBox RDP, disk encryption, NVMe and PXE boot for Intel cards. And this “experimental” is to be taken literally. VirtualBox 6.1.38 Oracle VM VirtualBox Extension Pack. Half a weekend went by before I came across an inconspicuous hint in the Virtualbox forum and in the online manual: Virtualbox also supports the Hyper-V virtualization engine included in Windows 11 (and probably Windows 10 as well) «experimentally».

If it ran through once after hours, other symptoms became noticeable in addition to the underground performance: sudden reboots of the VM for no apparent reason and increasing time delays in the system clock.

That should easily be enough! And yet: Whether I tried it with Windows 10 or 11 in the VM, the installation was excruciatingly slow. Thanks to a graphics card suitable for gaming, I was also able to activate 3D acceleration and allocate 256 MB of graphics memory. I assigned 8 GB of RAM and 4 CPU cores to the virtual machines.