How to delete files with long path names

I have thousands of files on long paths

i´ve tried to delete using forfiles and powershell

get-childitem -include thumbs.db -recurse | foreach ($_) {remove-item $_.fullname}

error:

The specified path, file name, or both are too long. The fully qualified file name must be less than 260 characters, and the directory name must be less than 248 characters.

PathTooLongException

how can i delete all files, even with long paths?