Click on the Browse button and select the folder that contains your downloaded icons. Open your System Preferences > Extensions > Finder and clear the Box Sync Finder Extension.
Switch to the Themes tab and click Desktop icon settings under Related Settings. The great thing is you can also use your keyboards in order to make a shortcut to the utilities while you are in Step 3: Scroll down to the file extension you want to change the icon for and then select
Troubleshoot OneDrive not syncing Method 1: Restart the OneDrive app on your PC.
