Just do this,set page file to 30 MB

I set only 30MB~30MB, [RAMDISK 100 MB out of 1G RAM]
OS will use whatever free RAM for any more page file use.
you will have 900 MB free RAM.[ ignore the warnning]
make sure your total usage[peak 尖峰記憶體使用量] will not >1G RAM.

http://www.theeldergeek.com/sizing_the_page_file.htm