@fender62......It is my understanding that Routers are designed to be left switched on and plugged into the telephone socket, at all times; even when computers/laptops etc. are switched off. It is deemed to be the case that, regularly switching off a router, will send false messages to the Telephone Exchange, suggesting that the telephone lines cannot handle the Broadband speeds and will then automatically cause a further reduction the speeds. If anyone has slow speeds it is often the fault of the Internet Service Provider being unable to handle a high level of user traffic.
A further point is that modern equipment does Not need to be Defragged. In fact, nowadays, Hard Discs benefit very little and there is really nothing to be achieved by Defragging a Solid State Drive.
Finally, I would Never recommend ccleaner because, unless used very very carefully, the Registry cleaner section could do untold damage to an operating system; even to the point of making it beyond further use. My view is, unless folk know exactly what they are doing, it is best to stay well clear of any forms of Registry cleaners.
Hans.