Tag Archives: Hyper-V

Windows Server 2019: Intel RSC support for NICs disabled in Hyper-V, storage stacks writes operations as write-throughs

[German]Another small piece of information for administrators of a Hyper-V cluster under Windows Server 2019. It looks like Intel has disabled RSC support for all NICs on the driver side as of release 1903. In addition, storage stacks write operations … Continue reading

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Windows 10: Activated Hyper-V /Sandbox creates a 0-day Exploit

[German]A reverse engineer bumped a vulnerability in Windows 10 in conjunction with the Hyper-V/Sandbox feature. Activating Hyper-V or the sandbox opens a 0-day vulnerability that can be used to attack the system. Advertising

Posted in Security, Virtualization, Windows | Tagged , , | 1 Comment

Windows 10 / Server 2019: Slow Network on Hyper-V & Bar Metal

[German]A German blog reader has pointed out recently a problem with Windows 10 and Windows Server 2019 regarding poor network performance (low throughput) in connection with Hyper-V guests (but also on bare metal Windows 10 clients without virtualization). The reason … Continue reading

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Hyper-V 2nd Gen: Can’t install an operating system

[German]In Hyper-V, you may not be able to install guest operating systems in Generation 2 VMs. The installation process ends with a ‘PXE Network boot using IPv4 …’ message. Advertising

Posted in issue, Virtualization, Windows | Tagged , | 3 Comments

RDP vulnerability puts Hyper-V at risk

[German]There is a vulnerability in Microsoft’s Remote Desktop Protocol (RDP) that can be exploited to break out of guest VMs running on Hyper-V in Windows 10/Azure. Advertising

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Windows 10 V1903: IP resolution bug in Hyper-V switch

[German]In Windows 10 May 2019 Update (version 1903) and possibly also in October 2018 Update (version 1809) there is a bug in the ‘Default Switch’ which leads to issues with Windows Sandbox, Mobile Hotspot or with Windows Containers – they … Continue reading

Posted in issue, Virtualization, Windows | Tagged , , | 4 Comments

Hyper-V VM Shutdown issue in Windows Server 2019

[German]There is an issue with Hyper-V on Windows Server 2019 (and possibly Windows Server 2016). The Hyper-V platform cannot shut down virtual machines properly. Advertising

Posted in issue, Virtualization, Windows | Tagged , , | 17 Comments

Tip: Delete Hyper-V VMs with a GUI tool

If you use Hyper-V on Windows, you can add, run, or remove guest operating systems from the Hypere-V administrative Console. More convenient would be a tool with GUI to delete VMs. Advertising

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Windows Server 2012 R2: Update KB4036479 pulled

[German]Microsoft has pulled Update KB4036479 for Windows Server 2012 R2, releases on September 19, 2017, due to serious issues with Hyper-V. Here are a few details. Advertising

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Windows Server 2012 R2: KB4036479 install issue

[English]Today a short note for administrators of Windows Server 2012 R2 who intends to install update KB4036479. This update shall prevents restarts in Hyper-V, but is causing install issues. Advertising

Posted in issue, Update, Windows | Tagged , , , | 3 Comments