I have an older laptop that I use on limited occasions - it is running Win7 64 bit Premium with a Celelon 900 CPU, 250GB HDD (68GB used) and 3 GB ram. After a slow bootup 50-60 seconds the CPU usage monitor initially fluctuates between 18 and 100% and then remains at 100%.
I know that the Celeron 900 is not noted for speed and not fast be today's standards but recently it has become agonizingly slow to respond to anything I attempt to open (sometimes several minutes). I have run a variety of cleaners, optimizers, disk checks/repairs, antispyware, virus and maleware scans to no avail. Also have disabled most all startups and switched most all services to manual.
I have Comcast that provides between 80 and 90 Mbps internet speed.
I would appreciate any suggestions on any additional steps I might undertake to resolve this slow response issue.