Vmware Vcenter Converter Standalone Unable To Start The Change Tracking Driver May 2026

A red error bubble popped up: "Unable to start the change tracking driver."

It was 11:47 PM on a Friday. Sarah, a senior infrastructure engineer, was two hours into what should have been a routine P2V migration. The source machine: an aging Windows Server 2008 R2 box running a critical line-of-business app. The destination: a shiny new vSphere 7 cluster. A red error bubble popped up: "Unable to

The logs were her only friend now. She navigated to %ALLUSERSPROFILE%\VMware\VMware vCenter Converter Standalone\Logs and opened converter-worker.log . The destination: a shiny new vSphere 7 cluster

She closed her laptop, leaned back, and stared at the ceiling. She closed her laptop, leaned back, and stared

She changed it to "Warn" (temporarily), ran gpupdate /force , rebooted again, and started the conversion.

Sarah sighed. Not this again. She opened her browser and started the late-night ritual. The VMware forums were full of similar stories—admins stranded at the same 5% wall. Change tracking. That kernel-level driver used by Converter, Backup APIs, and replication tools to monitor disk block modifications. Without it, no incremental sync, no hot cloning. Just failure.