How to assign login scripts to users without having to do it one by one

We had an issue where our student users lost permissions to their network drives. It seems the only way I have been able to re-grant them access to their "home folder" is through AD, one at a time. I would change the path of the login script for that user, by back spacing one character, retyping in the correct path, and then it would say "The folder already exists, do you want to grant Full Access to this folder".

Is there are a way to grant rights to a group of users to their home directory without having to do it one at a time? We only want each user having rights to their own home directory, and not anyone elses.

We have tried changing the rights for the root folder, and it shows that the container the users are in have Full Control of the root folder "Students", then each child folder is each student's home folder. But when I check the security permissions for each individual folder, that specific user is not listed as having rights. It would be nice to do this all at once instead of one at a time.