Question: Why can't I drag and drop a file to my USB drive
This is silly as I can do this operation a gazillion times in Windows or Linux systems.
1. I create a zip file on my MacBook desktop.
2. I plug in the USB drive, the drive show up on the desktop.
3. I use Finder to open the USB drive. I click to select the zip file and drag to the USB drive - nothing?
I can open and browse the USB drive without problem. I can select the zip file and make copy on the desktop multiple time.
I check the file permission and turn on write-read permission, etc. repeat the operation. Nothing.
This is so darn silly that this operation did not work and no error or anything from the system to indicate why?.
Any trick to test what blocking the copying?
MacBook Pro, macOS Sierra (10.12.6)