Toolbox .prt files

When saving most of our large assemblies I get thepromptshown below.  SW has not used the *.prt extensionforquite some time, but those parts are still used in many of ouroldsub-assemblies.  None of our files are used forcustomerpurposes, only in-house projects, so this is more or lessanuisance since we don't use BOM's for nuts/bolts (althoughweshould).  As many as 25 or more of these prompts come up,onefor each referenced component, each time the file is saved,whichreally slows down progress.  Checking "don't as meagain"is only a temporary fix.  And then theres theissue with the*.prt files opening with the wrong configuration, ifat all.
How can I changed the old *.prt hardware components tothemost recent toolbox?

I checked our network drives and found a total of eleven,yeseleven, toolbox locations.  About half of them are theold*.prt hardware files (...\partlib\) and the other half arethe"newer"...\browser\. Tools>Options>HoleWizard/Toolbox is onlyreferencingthree of these, so the rest are not causing anyproblems. Most of these locations are copies and old browsersfromprevious SW installs.  I'd love to delete all theoldbrowsers, but I have no good way of knowing if they arebeingreferenced anywhere.SolidworksToolbox