Environmental Description.
This virtual machine was originally a Win7 system. But win7 stopped technical support. We chose to upgrade to win10 directly on the original win7 system. it was working fine on ESXI6.7 environment and after upgrading to ESXI7 environment there was an exception. Migration back to the ESXI6.7 host worked fine. Tried upgrading compatibility to ESXI7 and it still did not work properly.