Service Host: Local Service (Network Restricted) is Causing High CPU / Disk Usage

Fix: Service Host: Local Service (Network Restricted) is Causing High CPU Usage / Disk Usage

Some Windows users are complaining that their CPU / Disk (either or / both) usage is high, without any particular reason. The problem shows up whenever the computer wakes up from sleep, or even during regular work sometimes. If you’re facing the similar issue, you’re going to find a solution in this post.

If you explore Task Manager a little bit, you’ll see that Windows’ Service Host: Local Service (Network Restricted) is causing the problem of high CPU / Disk usage. This is not relevant to CPU’s speed or power, because it can happen on any configuration. Anyway, Service Host: Local Service (Network Restricted) contains a lot of, how would I say, sub-services, and one of these sub-services is causing Service Host: Local Service (Network Restricted) to use CPU / Diskto its maximum.

This service is called Superfetch and it’s used to pre-load data from hard disk into RAM memory. So to improve your performance, and get rid of the high CPU usage, you have to disable Superfetch service, and here’s how to do that:

1.Go to Search, type services and open Services 

2.Find Superfetch service, right click on it and go to properties.

In startup type select "Disabled". Click Apply and Restart your PC.

That’s all, after disabling Superfetch service, your CPU usage should get back to normal and you’ll be able to continue with work on your computer without any problems.

Although Microsoft says that Superfetch service improves computers’ performance over time, in practice, it’s actually the opposite. Many users complained that this service keeps performance optimized only when the system is newly installed, but after some time, it actually decreases its performance. Also, Superfetch services runs on very low priority, so it should not affect other IO activities, because normal IO activities run at high priority.

Hope this is useful for you. If you have any problem, mention it in the comment section.