How to delete multiple presets in Lightroom? Where is the folder?

Hi guys,

I have searched everywhere but could not find an answer so far.

I accidentally imported all of my preset folder into lightroom and I have got thousands of presets now which I don't need them and they make my lightroom sooooo slow too. Where is this folder, please?

Please do not come back to me saying that appdata/develop presets etc...The folder is empty.

And also right click delete option is useless as I have got more than a thousand....

I can not find this show preset folder on preferences that everyone is talking about either.

Just updated so I am using the latest version.

I uninstalled and reisnstalled the program but they all came back. So, it must be somewhere on the cloud.

I changed the location of the preset folder hoping that ot would give me an option saying that there is an error so I can delete them. But nope...They are embedded somewhere....

Some people are talking about Adobe Raw folder etc but this folder is also empty on appdata folder.

Any ideas?

Thanks

Oz