How to persist change in finder sidebar width?

Question

Hello guys, I want to persist change in finder sidebar width once I change it. Now what happens is that I drag to resize then go to view->show view options->Use as defaults but next time I create a new folder, it resizes to wrong setting again. I even tried resizing by holding option but no result. How can I persist this change in width
This is what it looks like when new folder is created:
but I want it to be like this each time:
How can I achieve this?
Thank you

Answer 1

Hi kashif789us,
Thanks for the question.   For most applications, when you resize a window, you need to quit the app and relaunch it for the changes to take affect.   The Finder app is a little different, since you can't quit it.
I would recommend that you make the change to the sidebar width, then choose Force Quit from the Apple menu.  You will be given the option to relaunch the Finder app.  When you do, choose File > New Finder Window.   You should see the resized sidebar in the new window.  When you restart your Mac, this same window should persist.
OS X Yosemite: Customize the Finder toolbar and sidebar
http://support.apple.com/kb/PH19079
Customize the sidebar
Hide or show the sidebar: Choose View > Hide Sidebar or View > Show Sidebar. (If Show Sidebar is dimmed, choose View > Show Toolbar.) 
Resize the sidebar: Drag the right side of the divider bar to the right or left. 
Change what’s in the sidebar: Choose Finder > Preferences, click Sidebar, then select or deselect items. 
Rearrange items in the sidebar: Drag an item to a new location. You can’t rearrange items in the Shared section. 
Add a file, folder, or disk: Drag the item to the Favorites section. 
If you don’t see the Favorites section, go to Finder > Preferences > Sidebar, then select at least one item in the section.
Add an app: Hold down the Command (⌘) key, then drag its icon to the Favorites section. 
Remove an item: Drag the item icon out of the sidebar until you see a puff of smoke. 
The sidebar link disappears, but the original item is still on your Mac. You can’t remove items from the Shared section.
To change other Finder preferences, choose Finder > Preferences. For more information, see Finder preferences. 
To set the scrolling behavior for Finder (and other) windows, choose Apple menu > System Preferences, then click General.
OS X: How to quit an unresponsive application using Force Quit - Apple Support
http://support.apple.com/en-us/HT201276
OS X: How to quit an unresponsive application using Force Quit
Press Command-Option-Esc, then select the unresponsive app from the Force Quit window that appears, and click Force Quit.
OS X automatically relaunches the Finder when it is quit. If the Finder is unresponsive, use Force Quit to relaunch it. Select Finder in the Force Quit Window or Dock, then click Relaunch.
Give it a try!
- Judy