Running process as SYSTEM user

open a cmd as administrator,
type in "at 14:55 /interactive cmd.exe"
The time should be about one minute in the future in 24 hour format.
When the time happens, your CMD will change to SVChost.exe.
Open task manager
go to explorer.exe and hit end process.
In your SVChost.exe box
type "cd.." to go up one level.
Then type in "explorer.exe"

Then explorer will be running as a system user, giving you full access to windows and the kernel.