Well that depends on the type of laptop that you have, if you have a laptop that does not have a very reliable system, or very much memory or gb. It could possibly slow down your computer, but only a little bit. If you are having trouble with a slow computer, then you can do what is called a "Defragmenter". A Defragmenter removes all unwanted installed items on your computer. If there is any further questions you can always ask. Hope this answers most of yor questions.
