Hyper-V: tools, error fixes and lab guides
Everything I’ve written about Microsoft Hyper-V lives here. A searchable error reference that tells you how to fix each failure, not just what it’s called, plus a PowerShell generator because I never remember the cmdlet flags either. And a few hands-on guides, from standing up a whole lab down to clearing the errors that won’t let a VM boot. Free, no signup. Runs in your browser.
Hyper-V Error Reference
Type whatever you’ve got. A code, or just the symptom you’re staring at (0x80070569, hypervisor is not running, 0x800705AA). You get the cause back, plus the steps that actually clear it. 75+ failures in here, sorted by category, including the obscure ones nobody bothered to document.
Hyper-V tools
The chores you hit on every host, turned into little browser tools. They run entirely on your machine.
Guides and walkthroughs
The long reads. Every one is something I actually built and broke and rebuilt, with copy-paste commands and diagrams I drew myself.
Live Build a CTF Lab on Hyper-V: Full Walkthrough Three trust-segmented switches. Kali doing the attacking, Metasploitable3 and a soft Windows box as targets, pfSense sitting in the middle. Then we land a first exploit. Scriptable end to end in PowerShell, which honestly is the only way I’ll rebuild a lab twice. Live The Hypervisor Is Not Running, Complete Fix Guide Five checks, in order: BIOS virtualization, the Hyper-V feature, hypervisorlaunchtype, the VMware/VBS fight, the services. Then a way to confirm it really stuck. A decision-tree diagram takes the guesswork out of which one bit you. Live VMware Workstation and Hyper-V on the Same Machine That Device/Credential Guard clash, solved two ways. Move to VMware 16+ and they finally get along. Or rip Hyper-V and VBS out if you’re stuck on an older build. A decision table helps you pick, and the steps to put everything back are there too.Common Hyper-V errors, with fixes
The ones I get asked about most. Click any of them. You land in the full reference, fix steps and all.
Companion tools and series
Hyper-V rarely lives alone on a host. Here’s the rest of the sysadmin kit I reach for next to it.
