Step 1: Get the Proper Tools
*Note: It is possible to change the string without these tools, but it is much more difficult and takes longer. You also run the risk of poking your fingers with the sharp wire.
2. You will also need the correct replacement strings for you guitar. These can be purchased at most music stores.
*Note: Make sure you purchase acoustic guitar strings if you have an acoustic guitar. The strings are fairly similar in construction, but the sizes will be different and will not match the original strings as well.