"Standard" packages are those that do not require the DCH driver components.
"DCH" (Declarative, Componentized, Hardware Support Apps) refers to new packages preinstalled by OEMS implementing the Microsoft Universal Driver paradigm.
DCH drivers cannot be installed over a standard system, and Standard drivers cannot be installed over a DCH system.
To confirm the type of system you have, locate Driver Type under the System Information menu in the NVIDIA Control Panel.
For more information, visit What's new in driver development
NVIDIA Virtual GPU
Beta, Older drivers and more.