Without third party tools.
a. Open File Explorer and navigate far into the folder structure.
b. Copy the location by holding SHIFT while right-clicking into a white space.
c. Select “Copy as path”
d. Open cmd.exe as administrator.
e. Type the following commands, hitting Enter after each;
cd\
cd ” {Right-click your mouse} ” :The path should appear here.
subst j: . :Note the fullstop after the colon and space.
f. Open J: drive in File Explorer and navigate to the file that needs deletion and
delete as normal.
g. Using this methods also allows you to delete entire folders.
STEP 2:
a. Perform the steps listed above. Stop at e.
e. Type the following commands, hitting Enter after each;
cd\
cd ” {Right-click your mouse} ” :The path should appear here.
dir /X :You should see the short file names.
Delete the files using these names.
Use Third Party Softwares.
For that type of error you can use LongPathTool or GS Richcopy 360.These software will surely help you to transfer, delete or do anything with your files