Please follow the below mentioned steps:
1.Go into Lightroom and click on Edit at the top (next to File) on a PC or Lightroom then Preferences on a Mac.
2.Go down to Preferences and click on it.
3. There will be a new screen that pulls up. There will be six tabs at the top, click on Presets (second tab).
4. Click on the box titled, Show Lightroom Presets Folder.
5. Double click on Lightroom.
6. Next double click on Develop Presets Folder
7. Add your Presets to this Location.
Please let us know if it helps.