At home I have 73 proceses running and with the extra security at work there are 84 processes running. While so many processes may slow down the system a bit, it is not objectionable. I can still run Roxio Creator to edit videos.
Use task manager to determin what task is hogging processor time. There are Five possible problems:
1 A security (virus etc.) program is running continuous scans, if so delete and reinstall the virus program.
2. You have some malware operating continuously. Run Adaware and/or Spybot Search and Destroy.
3. Your system has too much trash. Run CCleaner to clean all temps then run the CCleaner registry cleaner.
4. This problem can also be caused by a memory fault, but this is rare. Run a memory test program to eliminate a hardware memory problem. I had a ram SIM develop a bad bit and cause this problem.
5. You have a have a software fault on the hard drive. If all else fails you must save all of our data and reinstall Windows. The disk can fail such that it is trying to repair corrupted data. The disk then runs continuously. I have seen several systems develop this problem. The solution is painful, but the reload has worked every time the previous easy solutions failed.
Johns Hopkins U.