No, I have spent much time and asked several times on the site. Nikon confirm that there is no built in way to delete keywords. (I am talking from the keyword list, you can of course delete a keyword from an individual image)
I tried the following but it doesnt work either. C:\Users\yourname\AppData\Roaming\Nikon\Capture NX 2\application.cfg (as per a thread somewhere on this site)
This takes me to my keyword list in .cfg. I can delete & save the changes here but that does not impress Capture NX2 at all as the list remains unchanged within NX2. Not only a problem in itself but my list keeps replicating itself and thus getting longer & longer so I no longer use NX2 metadata. Have asked for someone to check if they get the same result but noone replied. Nikon as usual say it will be considered in a future version but it has not been implemented in the latest recent change.
Mark, until reading the last part of the fix I have been trying to delete using .cfg repeatedly. Sorry for being dim could you answer two small questions before I try again please? 1) What are the delimiters - I have a straight list with no other marks apart from script instructions at each end? 2) Is it saying that all NEFs will have to have any keywords removed? (Some of mine had data added but for some reason at some point in time NX2 would not allow me to add keywords to NEF anyway, which doesnt matter to me as I save TIFF and JPEG from the NEF with keywords OK) Many thanks
Having said all that I deleted all but about six keywords from .cfg and deleted all keywords from all my NEFs (also iptc presets) and saved .cfg changes - fired up NX2 and noted the list had been changed. BUT when I returned to use Capture Nx2, some time, later the whole original list was back again! Must be missing someting?????
Me again, what happens is this, initially having done all the above and shut down & rebooted (Win 7 64 bit)the list has indeed been edited when I look at any NEF. However as I work through my JPEG or TIFFs within Capture NX2 the keywords which are in those images accumualte as each image is selected so that the different keywords from each eventually reproduce the original long list of keywords. So in my case I would have to delete all keywords from all images which would not be a good idea as many are used on photo web sites where the keywords will be used as searches.