Effective permission: delete
The FAT filesystem has no permissions. Anybody has full access to each and every file in the drive. This, combined with its widespread implementation, is one of the reasons why it is the de facto filesystem of USB drives. On the other hand, NTFS has permissions. To be able to delete a folder, a user needs to have either Full Control or Modify permissions. In Windows, to set these, right click the folder, select Properties, and under the Security tab, select the user, and check the Allow boxes below. You need to have permissions yourself beforehand (either by being the original owner, or by doing this as an administrator)
There's specific permissions that allow users "create", "delete own" and "delete any" attachments, look in the permissions for the project (Jira admin rights needed for that of course)
gerp
"Read and Execute"
Modify
Effective permissions
Yes, you can but you have to be careful because hidden folders are usually required for the operating system. But you are sure that you can delete it safely, follow instructions. First, to delete a hidden folder you should have an administrator-type account, it's required. Second, hidden folders should be visible. To make them visible you have to choose in the explorer window: My Computer->Tools->Folder Options...-> tab "View". In the advanced settings list box choose Show hidden files and folders. Sometimes your account is not the folder/file owner the system will not allow you to delete it. In this case you have to take ownership of the folder/file and allow your account to have full access to the required files/folders.
One of the 'security' methods used by OSX is file permissions. Basically, everything on the hard drive can be considered a file, whether it will be a document or an application once it is read into the computer. Permissions extend from the object downward. So, if a folder is 'locked' then nothing in the folder, or within folders that are inside it, can be opened if you don't have permission to do so. If you have SKYPE in a strange location, OSX may not allow you to open it. Put it in the Applications folder. There are at least two Application folders on your computer. Each user has one, and the system has one. If a user other than yourself installed SKYPE into his Application Folder, then you will not have permission to open it, even if you move it into your app folder. Sometimes permissions can get confused. Use Disk Utility to repair them. Another simple way to fix your problem would be to install SKYPE again and make sure it is put in the System Application Folder.
Make sure that all computers belong to the same workgroup. Also you need setup permissions properly to allow users using your share. There are two ways to do that. One is to allow everybody accessing the share and second one is for certain users only. If you want set permissions for certain people you will have to setup a local account for them. Otherwise it will not work.
Public folder sharing
You have to delete all security politics for your file using security options. Then you have to add yourself like the owner. If it doesn't allow you to do that you have to boot up in Safe mode and in the Safe mode to do everything what you need. The reason why you have to be in the Safe mode is really simple. In the Safe mode windows boots up only files which are necessary to start the operating system but not dedicated files. I think, when you are trying to delete that file the system uses it that's why you cannot delete it in usual working mode.
Allow read permissions only.