Tag Archives: Hyper-V

Windows Server 2012/R2: January 2022 Update KB5009586 bricks Hyper-V Host

Posted on 2022-01-12 by guenni

[German]Microsoft Hyper-V users running Windows Server 2012/R2 should be cautious about installing update security update KB5009586 or KB5009624 for Windows Server 2012/R2. The security updates released on January 11, 2022 have several unpleasant collateral damages at once. After installing the … Continue reading →

Posted in Security, Update, Virtualization, Windows | Tagged , , , | 31 Comments
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Windows Server 2019: Intel RSC support for NICs disabled in Hyper-V, storage stacks writes operations as write-throughs

Posted on 2021-01-27 by guenni

[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

Posted on 2020-09-12 by guenni

[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

Posted on 2020-02-21 by guenni

[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

Posted on 2019-08-25 by guenni

[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

Why ISL Online: Critical factors when choosing a remote desktop solution

[Sponsored Post]In the rapidly evolving IT world, choosing the right remote desktop software is critical for organizations that value security, ease of use and reliability. One provider of secure remote access that has been on the market since 2001 is ISL Online, which presents some considerations for choosing such software below. More ...

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

Posted on 2019-06-18 by guenni

[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 , , | 5 Comments

Hyper-V VM Shutdown issue in Windows Server 2019

Posted on 2019-02-08 by guenni

[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 , , | 22 Comments

Tip: Delete Hyper-V VMs with a GUI tool

Posted on 2018-09-23 by guenni

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

Posted on 2017-09-27 by guenni

[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

Posted on 2017-09-22 by guenni

[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