Over the years I have always experienced that after about a year or so my computer would start to run a bit slower even if I shut the machine off then back and also "restart" the same thing.
I have tried several different programs: TweakNow Power-Pac, Registry Mechanic etc.
My computer would speed up a little, but was still loading programs slowly, surfing was somewhat time consuming and of course I download lots of pictures for morphing.
I went on the Internet and using Bing I entered. "Slow computer and slow startup"
One of the programs recommended was "Fix Cleaner".
I got the program and ran it tonight.
The original speed is back! I had so many junk files and other crap, like about 5,000 junk files etc.
It cleaned it all out plus has a driver repair-update feature that updated 7 drivers.
I am just glad that after all this time I found something that works better than I expected!