Which NTFS permission allows a user to change a file's content?

The permission that allows a user to change a file's content is the Modify permission. This permission grants users the ability to read the content of a file, write changes to it, and delete it. By having the Modify permission, users can not only access the contents of the file but also make alterations, which is essential for editing documents or updating files.

Understanding the role of other permissions enhances this clarity. For instance, the Read permission only allows viewing the contents of a file without making changes. The List folder contents permission is specific to directories and does not apply to individual file editing. Full control, while it does enable a user to modify content, includes additional capabilities such as changing permissions and taking ownership of the file, making it a broader permission than what is needed solely for content modification. Hence, Modify is specifically tailored for changing file content, making it the correct choice.