I bought a Sony Vaio VGN-NS330J last November and up to last week I've been noticing that the computer has become a lot slower. The CPU Usage is always high, above 70% and sometimes it's at 100% near constant. The temperatures are between 54-65 degrees Celsius and I've never seen this before.
I ran scans with Spybot, AVG, Microsoft Security Essentials and Malware Bytes, where 3 threats were removed.
I selected important services and programs to start up and the task manager shows 100% CPU usage yet the programs that are using CPU memory; merely add up to 28%.
I bought an air compressed spray and sprayed the vents, and ports etc. of the computer, and I cannot seem to see the fan speeds. I tried SpeedFan and another software to display computer statuses and both of them only display temperatures and not fan speeds. And yes, I do have a fan, lol.
The RAM is always under 50% usage.
I am using a Pentium(R) Dual-Core CPU T4200 @2.00 GHz
System type: 64-bit Operating System
It's running Windows Vista Home Premium SP2