How to Fix Hyper-V Checkpoint Failed
Hyper-V checkpoint failed? Fix it by checking disk space, VHDX permissions, VSS writers, and production vs standard checkpoints — with the AVHDX chain explained.
Sysadmin Desk Jul 6, 2026 8 min read
Virtualization (Hyper-V, VMware, VirtualBox)
6 guides
Run virtual machines with confidence — Hyper-V, VMware ESXi and Workstation, VirtualBox, and WSL2, plus the conflicts, networking, snapshots, and backup issues that trip people up.
How to Install Windows 11 in VirtualBox
Install Windows 11 in VirtualBox the right way: enable TPM 2.0 and Secure Boot in EFI, set VM specs, mount the ISO, handle the requirement bypass, and add Guest Additions.
Sysadmin Desk Jun 28, 2026 7 min read
VMware Snapshots Explained: Why They Are Not Backups
How VMware snapshots and delta disks really work, why they grow and slow your VMs, the 72-hour rule, and why a snapshot is not a backup. Practical guidance.
Sysadmin Desk Jun 21, 2026 7 min read
How to Fix Hyper-V Virtual Machine Has No Internet
Hyper-V VM has no internet? Work through the virtual switch type, NAT setup, VM adapter, host firewall, and DNS to get your guest back online for good.
Sysadmin Desk Jun 14, 2026 8 min read
How to Create an External Virtual Switch in Hyper-V
Create an external virtual switch in Hyper-V the right way. Switch types compared, Hyper-V Manager and New-VMSwitch steps, and how to avoid losing host network.
Sysadmin Desk Jun 7, 2026 8 min read
How to Fix VirtualBox VT-x Is Not Available (Conflict with Hyper-V)
VirtualBox says VT-x is not available (VERR_VMX_NO_VMX)? Here's how to free your CPU virtualization from Hyper-V, Memory Integrity, and WSL2 — and fix it for good.
Sysadmin Desk May 24, 2026 11 min read