I think post #5 in the thread at https://www.excelforum.com/excel-programming-vba-macros/502169-control-toolbox-does-not-appear-when-trying-to-design-a-userform.html may help. Although it refers to Excel and a file named Excel.box, there is also a file named Winword.box in the same folder, %appdata%\Microsoft\Forms. Renaming it or moving it and restarting Word may bring the toolbox back to its default location. Fingers crossed!
VB Editor UserForm toolbox missing
I am working on a UserForm and all of a sudden the toolbox is missing (probably off the screen).
I am in the vba Editor and the UserForm has the focus on the screen.
It is checked under the View menu.
I have my Windows taskbar on the left side of the screen and it may have hidden under that, but changing the taskbar position does not help.
I'm confident I've seen this on the forums in the past but I can't find the thread(s).
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Charles Kenyon 160K Reputation points Volunteer Moderator2020-05-25T01:54:44+00:00 Thank you Jay.
I tried renaming WinWord.box by adding a .bak extension to it (WinWord.box.bak) and that did it.
The old file was 7Kb. The one created by Word when I went back in is 16Kb
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Jay Freedman 206K Reputation points Volunteer Moderator2020-05-25T02:37:33+00:00 Excellent! From the number of replies in the Excel thread saying it didn't work for them, I wasn't sure that would be the solution.