When I upgrade a program does it increase the amount of disk space that is used?

by on July 17, 2009

Q: When I install updates for a program (e.g. itunes) does the size of the updates build on top of the memory I already have for that program or does it replace the memory already there? What is normal size increase that should happen? Anything else I should know about this and what to do about it (e.g. delete old program files)?

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One Response to “When I upgrade a program does it increase the amount of disk space that is used?”
  1.  
    Picked as best answer

    It really depends on the program itself. iTunes for example has you download a new iTunes and it actually replaces the old version so you don’t need to do any deleting yourself.

    Other programs will actually install the new version in a new directory leaving the old version untouched. This forces the user to have to clean house but the upside is if the new version does not work you can easily switch to the previous version.

    Then yet other programs, these are the ones most people like, just have you download small updates that only include the files that have changed. The update then just updates those files and it is nice because you have a small download and the update goes quickly.