RAMDisk is a great for storing frequently accessed data such as temp files, page files and database index files. RAMDisk is freeware up to 4GB disk sizes.
Most users use RAMDisk to speed up applications like:
2.Internet Explorer cache for faster web surfing
3.Audio and Video editing
7.Speeding up CD duplication
10.Custom applications with high I/O, high bandwidth, or high security requirements
download this software from below link: