system starting problem

hi guys

any help will be appreciated

when i am starting my virtual system where bi is installed i am getting following message and system is not starting.

"the system could not be restarted from its previous location because the memory configuration has changed. if you proceed, your hibernated context may be lost. To properly resume, you should turn your machine off now, restore the original memory configuration, then reboot the system.

delete restoreation data and proceed to system boot menu."

please help to make my system working.

memory size is ok but i dont know how to delete restoration data.

thanx