Windows - Shutting Down Unecessary Processes and Services

[Sumio]

I am experimenting with the services tool in Windows, to end all services I do not use. It has worked so far, as a significant portion of the RAM is freed. The computer seems to be running much smoother now, but there are a few sharp ends. I disabled all the services I did not want to even start, such as the print spooler and the File Indexer, and many more. On the task manager, all the information there seems to indicate the pc is running smooth.

On opening the reliability monitor, I see that the CPU is running at 100% frequency. The cause is "NT Kernel & System" which is using 180 threads - which is by far the most, compared to anything else. So is this a normal statistic for Windows, and are there any default side effects of disabling services ?

 

[cpu.]

You need to make sure that another service is not dependent on the service(s) you stop.

 

[bruce_the_loon]

What you are seeing is that the motherboard/cpu are not automatically throttling down the cpu under low load. The green graph is the actual cpu load metric and that is nice and low. The only downside is that the cpu is drawing max power and generating max heat in that state.

Possible causes could be a driver/device constantly being polled; some software doing realtime or near realtime work like a webcam or similar; a service you disabled like Superfetch not managing the cpu load demand; the feature might be disabled in BIOS or even not available, depending on your CPU model.

Unless you're trying to save power or reduce heat, it isn't affecting your performance which appear good from the picture you posted.