I have an external hard drive which contains several folders that is well organized per category of files ( I do this a lot). Sometimes, people who use/borrow my external hdd alter some of the files, like they accidentally drag and drop files to other folders or mistakenly cut and paste my files onto their USB's. Incidents like these messed up everything and I always have a hard time looking for that particular file(s) inside my external hdd.
Is there any workaround in restricting or setting up my files so that it can't be changed/altered by anyone? Or, is there any third-party application that does this job well?