This is almost always due to the lack of RAM (random access memory). High capacity ram is needed, or increase the virtual memory limit through windows.
To increase the running memory on your computer and get rid of insufficient memory messages, close any non essential programs. Some of these programs may be running in the background.
may be your RAM ( random Access memory) used fully used by your CPU, that your system display you have insufficient memory error message, increase your ram level.
You can increase the amount of Virtual Memory available - this is a short term option. In the long term you need to buy more RAM from a computer store.
