Vmware Vcenter Converter Standalone Unable To Start The Change Tracking Driver -
And somewhere in a data center, another Windows box silently stopped breathing, waiting for its own 2 AM hero.
Scrolling near the failure timestamp, she found the clue:
She changed it to "Warn" (temporarily), ran gpupdate /force , rebooted again, and started the conversion.
Same error.
A red error bubble popped up: "Unable to start the change tracking driver."
Change tracking driver wasn't the villain. It was just the messenger—alerting her to years of security hardening, feature conflicts, and certificate rot hiding beneath a simple error message.
She uninstalled Converter completely from the source machine (cleanup with Converter standalone clean-up utility ), deleted leftover VMware folders from ProgramData and AppData\Local , then reinstalled. Still broken. And somewhere in a data center, another Windows
She closed her laptop, leaned back, and stared at the ceiling.
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.
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. A red error bubble popped up: "Unable to
A quick sc query vstor2-mntapi10-shared showed the driver service wasn't there either.
She disabled the AV real-time scanner temporarily. No change.
Bingo. The server had Hyper-V role installed (even though no VMs were running) and Device Guard enabled via group policy. Hyper-V and VMware’s change tracking driver cannot coexist—they fight for the same virtualization primitives. Still broken
That made sense. The server was old—Windows 2008 R2 with an older Secure Boot policy and no SHA-2 code signing updates. VMware’s newer drivers used SHA-2 certificates. The OS didn't trust them.