Kan ej ta bort fil pga för långt filnamn win 10

our question asks how to delete a file when the filename itself is too long. If the path is too long and not just the filename itself, you can easily just rename the folders to make the path shorter.

But to delete a file whose name is more than 255 characters:

Open a command prompt by running "CMD.EXE"
Navigate to the folder holding the file
Use the command DIR /X which will display the short names of files.
Delete using the short name.

i.e. if the file is named "verylongfilename.fil", the shortname will display as something like "verylo~1.fil" and you can delete using that name.

Please note that although Windows itself can handle paths far longer than 255 characters, most of the GUI -- like Windows Explorer -- is bound by the shorter limit.