i am trying to install new presets went to preferences and show presets and when i click on show preset folders there is nothing there could i have deleted it somehow
Depending on your operating system- eg. Windows may not show you "hidden items". This can be corrected from the menus of File Explorer.
The Windows default location for Develop presets is something like- C:\Users\Your Name\AppData\Roaming\Adobe\Lightroom\Develop Presets
The link in the Lr preferences to 'show presets' should take you to the Adobe folder with the Lightroom folder highlighted, you will need to expand the Lightroom folder to see all the presets folders.
thanks so much