Various technologies described herein pertain to performing a file operation on an inputted file on a computer system. File data retained at a first location in a data store and a first file name retained at a second location in the data store can be provided. The inputted file can include the file data. Moreover, the first file name is a hard link to the file data. Further, a file operation command related to the file data can be received during installation or removal of the inputted file. Accordingly, a second file name retained at a third location in the data store can be created in response to the file operation command. The second file name is created while the file data is immutably maintained at the first location in the data store. Further, the second file name is a hard link to the file data.