Photoshop Lightroom 4.3 Watermark Error

Question

Hi, i happen to have an issue deleting a watermark preset. Here's what happened.
I created a watermark and deleted the source file of the watermark. Sad thing is, i forgot the filename and i deleted the items in my recyclebin, giving me the disability to restore the said watermark in my folders. I even forgot where i placed the watermark (too bad of me).
After deleting the original file, everytime i try to select the said watermark, lightroom crashes. I could not even get to the point where I could click on the dropdown to delete the said watermark. I though found a work-around and created a new watermark. But if you are a person like me, I really hate seeing "unusable" things inside my computer.
Do you guys have a work-around how to delete manually the graphical watermark preset either through an easy way, or the manual way? I badly need it.
Note: I already tried installing and uninstalling Adobe Photoshop Lightroom 4.3 and still unable to delete the said watermark. (I bet my only option is to reformat my computer, which is something I honestly do not want to do.)
Thanks a bunch for the big help in advance!

Answer 1

If this doesn't work:
In your OS (Win Explorer / Mac Finder) go into the folder where your watermarks are stored.
Create a copy of one of the watermark prests that is working and rename it with the name of the deleted watermark. The name has to be exact as shown in Lr Watermarks Editor.
The contents of this watermark preset is not right. But that doesn't matter. All that matters is that Lr "thinks" the watermark preset still exists.
Then in the watermark editor delete this preset as described above.
A word to the wise:
I think you have learned already that it is not very wise to just delete files for the sake of a "clean computer".
If you continue this practice you will one day delete a file that your OS needs to start up. You won't notice it until you close down and want to start up again. Then when you see the message that your OS cannot start you'll know that your idea of a "clean computer" led you into a major catastrophe.
Been there, done that!