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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.
ERROR: Failed to install change tracking driver. Error 577: Windows cannot verify the digital signature for this driver. A recent hardware or software change might have installed a file that is signed incorrectly or damaged. Error 577. Signature validation failure. She uninstalled Converter completely from the source machine
She disabled the AV real-time scanner temporarily. No change. Error 577: Windows cannot verify the digital signature
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. Signature validation failure