How to reduce the size of quick access toolbar icons? (Office 2016)

You were plenty clear enough.  I had no problem with the getting right path for each installation. That is pretty basic stuff.  

 So, per your instructions, I first went to 2016 with the unreg switch, then back to 2016 with the reg switch,  followed by going to 2010 with the reg switch, as you listed.  That didn't work.  So I went back to 2016 with the unreg switch, and manually tried to associate programs with extensions.  Windows 10 and Office 2016 said no.  That is some obstreperous programming. 

Maybe if I uninstalled 2010 (with its 2003 components such as image extension- 2016 tools and interface are abominable), then reinstall, that might work?

Sorry, I wasn't clear enough. 

You have to use the "Quick determine Office applications Path" command first to find out where Office 2010 / Version 14 is installed on your computer. Then you modify the commands I provided to use your path. 

With the customized path, first run the "****....\winword.exe"  /Unregserver command then follow it by the ... ****... /RegServer command.

I save a couple of clicks by putting the "Open Recent File" command on the QAT. I have about 40 files pinned on my recent files list.

Rohn007,  Thanks for the prompt assistance.  Yes, I want to register all Word docs.  The lack of cleartype is unacceptable in 2016.  

In 2013, I could reassign extension associations, but not 2016.   I followed your instructions.  I assume you meant to run these commands in series after unregistering (with my paths):  

"C:\Program Files (x86)\Microsoft Office\root\Office16\winword.exe"/regserver

"C:\Program Files (x86)\Microsoft Office\Office14\winword.exe"/regserver

No luck. Office 2010 came up with the second command, but it seems that first command in 2016 overrode the second.  Plus as you mentioned, this might not work in 2010 anyway.  Which it didn't.   So tried the unreg command again, and then manually reassociated file types in Control Panel.  No luck there either. 

Back to the drawing (cussing) board. MS not only foists this interface on us desktop users, they spend their time trying to make it impossible to get around it, instead of fixing it with a desktop version.   I wish the software people treated their customers with the courtesy that you and Patrick do.  If there was any competition, disasters like Vista and 8 would have sunk the company.  

So I just gotta open docs through the 2010 open command.  A couple more clicks.  

Thanks for trying though. 

ETA:  I do get the Word 2010 icon in Explorer though!  Go figure....

Do you want to associate ONLY DOCX, or all Word format files with 2010?

If is all Word file types, you can use the RegServer command:

Re-register the application

(Note: You may have to adjust the path to the EXE to match your installation. Verify the path before running the command.)

Close the app. Open the Run Window: <WIN> R, use the following command (Modify the Path to match your specific installation):

“C:\Program Files\Microsoft Office\Office\winword.exe” /unregserver

The quotes are necessary, but you may need to change the path so it reflects the location of the winword.exe file on your system. (You can use Windows’ Search tool to locate the path to the winword.exe file.) The /unregserver switch “unhooks” all the references to Word in the Windows Registry.

You should then, immediately, use the following command:

“C:\Program Files\Microsoft Office\Office\winword.exe” /regserver

“C:\Program Files (x86)\Microsoft Office 14\Office14\winword.exe” /regserver

This command causes Word to rewrite all its Registry keys and to reassociate itself with document and template files. Now you can double-click a document file and see if Windows starts Word and opens the document.

Note: This article says that regserver does not work with Office 2010: http://support.microsoft.com/kb/291288

Re Register  re-register – regserver batch file

Make sure the path is correct for your installation. I have put these files into a BAT file on my desktop so I can run it as needed.

“C:\Program Files\Microsoft Office 2010\Office14\winword.exe” /unregserver

“C:\Program Files\Microsoft Office 2010\Office14\winword.exe” /regserver

Pause

“C:\Program Files\Microsoft Office 2010\Office14\excel.exe” /unregserver

“C:\Program Files\Microsoft Office 2010\Office14\excel.exe” /regserver

Pause

Quick Determine Office applications path

• open Excel
• open the Visual Basic Editor (aka VBE)
• open the Immediate window, Ctrl-g (also in the View menu)
• type or paste the following in the Immediate window

?application.path

• With the cursor at the end of the line, ie after “path”, hit Enter

If you want to change only the one file association, you will have to do that through Win 10. It sounds like you know how to, but it does not seem to be working for you.  Is that correct?  Describe the steps you are taking.