Windows 7 can warn you:
Destination path too long
File names would be too long for the destination folder. You can shorten the file name and try again, or try another location with a shorter path.
I tested on a path containing 210 characters (counting with the drive letter, file name with the extension, the path contains Polish characters).
Windows 10, e.g. after entering a too long folder and when trying to open a document or copying it to the desktop, hangs Explorator. Without warning, you cannot open any folders later until you restart your computer.
Destination path too long
File names would be too long for the destination folder. You can shorten the file name and try again, or try another location with a shorter path.
I tested on a path containing 210 characters (counting with the drive letter, file name with the extension, the path contains Polish characters).
Windows 10, e.g. after entering a too long folder and when trying to open a document or copying it to the desktop, hangs Explorator. Without warning, you cannot open any folders later until you restart your computer.