Windows 10 VirtualBox uninstallation required for 6.0.12, or application within VM crashes.

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Submitted for third-party in order to document rare issue encountered by a third party.

Third-party virtualizes a physical classroom disk image with VirtualBox for portability, deployment, and testing, and has done so for years.

A recent upgrade from 6.0.10 to 6.0.12 caused a commercial application within the VM to crash when accessing HTML files. We determined that UNINSTALLING 6.0.10 and then conducting a fresh installation of 6.0.12 solved this application crash, so something is not being uninstalled properly during the upgrade process.

I apologize for the lack of log files. Third party encountered this bug on a production machine and deadlines prevented retrieval of additional troubleshooting assistance. 6.0.12 was already uninstalled and 6.0.14 freshly installed, without issue.

[Socratis]

Duplicate of #19038.