HKEY_LOCAL_MACHINE\System\CurrentControlSet\Policies\Microsoft\PortableOperatingSystem

Disallow standby sleep states (S1-S3) when starting from a Windows to Go workspace
- HKEY_LOCAL_MACHINE\System\CurrentControlSet\Policies\Microsoft\PortableOperatingSystem\Sleep
Allow hibernate (S4) when starting from a Windows To Go workspace
- HKEY_LOCAL_MACHINE\System\CurrentControlSet\Policies\Microsoft\PortableOperatingSystem\Hibernate