Of this amount the 2 GB is allocated to user-mode processes such as applications and services and 2GB is allocated to kernel-mode processes e.g. operating system drivers and kernel mode. This value causes an additional 40 MB to be assigned to the operating system and allows you to add more users without using all available system resources. Daniels professional certifications include Microsofts Certified Technology Specialist Microsoft Certified System Technician Microsoft Certified System Administrator and Microsoft Certified Trainer. However remember that the message at the beginning of this workaround is aware that all Windows Update or hardware and video drivers work with the 3-GB switch enabled. An additional option that you can add is ALTERNATESHELL which tells Windows to use the program specified by HKLMSYSTEMCurrentControlSet SafeBootAlternateShell value as graphical skin instead of using default which is Windows Explorer.Out of that amount 2 GB is allocated to user-mode processes for example applications and services and 2 GB is allocated to kernel-mode processes for example the operating system and kernel-mode drivers .This value causes an additional 40 MB to be allocated to the operating system and enables you to add more users without consuming all available system resources.Daniels professional certifications include Microsoft Certified Technology Specialist Microsoft Certified Systems Engineer Microsoft Certified System Administrator and Microsoft Certified Trainer.However recall the notice at the beginning of this solutions that note all Windows update or hardware and graphics drivers work with the 3GB switch enabled.An additional option you can append is ALTERNATESHELL which tells Windows to use the program specified by the HKLMSYSTEMCurrentControlSet SafeBootAlternateShell value as the graphical shell rather than to use the default which is Windows Explorer.