Next, you need to chose which hard drive to put the swap file on, if you only have a C drive ignore this part. The fastest drive is the best choice. Another choice is to use a drive that doesn't have much activity on it. If you only have one hard drive put the swap file on the C drive. Next you set the Minimum and Maximum sizes.
Some people like to set the minimum but leave the maximum open.
This defeats at least half the benefit of doing this. The swap file can still fragment, and if the swap file needs to grow above the minimum size Windows will have to take CPU time to increase it. Now you click ok. This window will pop up. While it sounds scary, you don't need to worry.