Hyper-V

Technical articles from Microsoft’s Windows Server core team

Hyper-V HyperClear RETbleed Update

Multiple new speculative execution side channel issues were recently disclosed by both Intel and AMD.  These issues were described in security bulletins available here: AMD CPU Branch Type Confusion | AMD Return Stack Buffer Underflow / CVE-2022-29901, CVE-2022-28693 /… (intel.com) These hardware vulnerabilities are officially referred to as CVE-2022-23825 (Branch Type Confusion), CVE-2022-29900 (RETbleed), CVE-2022-29901

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Why Hyper-V Live Migrations Fail with 0x8009030E

Hi everyone, my name is Tobias Kathein and I’m a Senior Engineer in Microsoft’s Customer Success Unit. Together with my colleagues Victor Zeilinger, Serge Gourraud and Rodrigo Sanchez from Customer Service & Support we’re going to discuss a real-world scenario in which a customer was unable to live migrate Virtual Machines in his newly set

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Upload Custom Linux Hyper-V Image for Gen 2 VM in Azure

Introduction This is Andrew Coughlin and I am a Customer Engineer at Microsoft focusing on Azure IaaS. In this blog I will focus on how to upload a custom linux Hyper-V image for generation 2 virtual machines in Azure. Support for generation 2 virtual machines in Azure was released on November 4, 2019, these systems

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VM Checkpoints Names in the Hyper-V Manager Window…

Hello everyone, my name is John Clyburn and I am a Sr. consultant in MCS. I recently ran into an interesting problem with System Center Virtual Machine Manager 2019 and Hyper-V on Windows Server 2019 I think you may find interesting. The VM checkpoints showed up in the Hyper-V Manager window as VMs.  I would

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Hyper-V for Developers on Windows 10

Hyper-V is more known as a server virtualization technology; however, since Windows 8, it is also available in the client operating system. In Windows 10, Microsoft improved the experience drastically to make Hyper-V an excellent solution for developers and IT Pros. Microsoft Hyper-V, codenamed Viridian, is a native (type 1) hypervisor that directly runs on

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Hyper-V Powering Windows Features

December 2019 Hyper-V is Microsoft’s hardware virtualization technology that initially released with Windows Server 2008 to support server virtualization and has since become a core component of many Microsoft products and features. These features range from enhancing security to empowering developers to enabling the most compatible gaming console. Recent additions to this list include Windows

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Step-By-Step: Building a Hyper-V Lab in Azure with Windows Server 2019

I was recently challenged with having to create technical demos for a Microsoft Ignite the tour session called “Migrating to Windows Server 2019” (watch the recording here – awesome session). The demos for this talk centered around taking a bunch of Windows Server 2008 R2 systems running “core infrastructure services” (Active Directory, DHCP and File

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Virtualization-Based Security: Enabled by Default

Virtualization-based Security (VBS) uses hardware virtualization features to create and isolate a secure region of memory from the normal operating system. Windows can use this “virtual secure mode” (VSM) to host a number of security solutions, providing them with greatly increased protection from vulnerabilities in the operating system, and preventing the use of malicious exploits

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