How to compress 1 GB to 10 MB

If you have big file or folder which consumes large space of you HDD and you want to upload it to any server ,you will need to use a powerful compression program to decrease its size and I found a perfect one. KGB Archiver can compress file to 15% or less of its original size. It is really wonderful but to do the best compression you should have a large RAMs ,but it can also work with many modes so as to work with little memory. You should try this program and save you disk space.