You can't simply delete hiberfil.sys through File Explorer. Even if you enable hidden files and protected operating system ...

Microsoft Office Outlook maintains everything in a data file, also called PST or OST file. It is an offline copy of mailbox data stored on a local PC. In case of issues, you must delete the data file ...

As explained earlier, you see this message because there is insufficient free space in the Recycle Bin. Because the file you are attempting to delete is larger than the available free space dedicated ...