What is the difference between Page File and Virtual Memory?
The page file is a representation of virtual memory. In order for the actual file to hold virtual memory information it has to be at least as large as the stated available virtual memory. The page file most likely contains more than just information related to virtual memory. Also, it makes sense to have the page file larger than the available virtual memory, because if Windows needs to increase the amount of virtual memory then it doesn’t need to perform a large file resizing operation on the page file.