This means vs_installer.opc file is digitally signed , but the certificate used for signing is either expired, not trusted by offline system or requires online revocation check, which falls in an offline VM
Fix options:
· Use updated offline installer(with internet connection during layout)
1. On a machine with internet, run:
Vs_enterprise.exe --layout C:\VSOffline --lang en-US
This will fetch the latest vs_installer.opc and signing certificates.
2. Transfer the C:\VSOffline folder to your offline VM.
3. Run:
Vs_enterprise.exe --noweb
This avoids fetching anything from the web and uses trusted certs cached during layout
Hope this helps, please let me know if any other query.