you can directly use it extract and use directly, Follow the below mentioned step incase you get problem.
1:First remove the older version by using Revo uninstaller, make sure delete the leftover
registries and files by using deep scan option after uninstall.
In the end of Roaming folder you will see files like
Delete them also delete the folder of LTP in roaming folder.
3:Now again use the my provided LTP and enjoy.