Originally Posted by praveen1234
not updating ubntu due to insufficient memory how to allocate the memory without uninstalling the os currently my machine working on windows and also in ubntu but only 40mb of free memory allocated how to increase this memory size????
No idea, since you're not providing ANY useful details. Short answer: quit some running programs or buy more memory.
Where are you getting this message? When? What are you running to get it? What kind of hardware and what specs does it have? Version of Ubuntu you have now, and what are you trying to upgrade to?