I have no right click menu?

In order to browse to the vault from within solidworks I can click on the "file" , "open" cammand.  Up pops windows explorer (with a little sw icon in upper left corner) and I can right click on a file to "open" or whatever else I'd like to do from the menu.  However, when I browse to the vault by opening windows explorer outside of solidworks I cannot right click and get a menu.  Right click works fine with all orther apps.  I tried a couple other mice and had same result. Any ideas?

thank you in advance for any assistance

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