Changes to your computer
You don’t notice when things change over time until you look at how these used to be. For example you don’t realise how much you have changed until you see an old photo of yourself. A further example of this is your computer, can you remember how well your computer used to run? You don’t really notice how badly it’s performing now until you think about how it was before. Once you realise how bad things now are and after the initial anger you will probably want to do something about it. That when you need to use some software to fix windows registry errors.