Ok, rather than disclose an obnoxious sarcastic response, there are a various reasons which slow your computer over time. First, is installing useless & shitty PUPs like this. Second is hard drive fragments so people so use your windows defragmentater.(if you really want to use an alternative defragmentation for offline/registry defrag Glary disk speed up is FREE and light on the sytem) Thirdly, a build up of temp files and other junk which windows disk cleanup resolves- The only reason i still have CCleaner, which is also borderline useless, is for the hard drive free space wipe(still unnecessary for most users)- Fourth, and extremely significant, YOUR RAM- its actually cheaper to upgrade a few memory chips then to waste your money on some of these software keys-Free or paid doesnt make a difference here, still crap……Of course if you have malware & viruses plaguing your computer its going to run slow, so update and use windows security/defender or whatever security you run..many of you might have antivirus programs which are memory beasts ….And last but not least, your laptop was shitty from the beginning so stop being so cheap and buy something worthy…..that’s it….ciao