Service Host Superfetch – How To Fix High Disk Usage On Your Windows PC?

Service Host Superfetch

Facing the Service Host Superfetch causing high disk usage on your Windows PC? Well if your answer is yes, then you are not alone. This is one of the most common issues that lots of Windows users face. However, the good part is that fixing the issue is not as hard as it seems.

A few tweaks here and there would definitely solve the issue. However, before we go ahead and talk about how can you fix the Service Host Superfetch error. Let’s just talk what this service does. And how can you easily fix it.

So let’s just head into the topic without wasting much of the time:

What does Service Host Superfetch Do?

Well, the superfetch is a part of the Windows Vista and later windows version internal files. The main thing that this program does is it helps windows to manage memory for your applications randomly. So they can perform efficiently.

Moreover, it also helps the third party applications and vital Windows components to work and execute common tasks pretty quickly. And to do so, Superfetch stores and reads data for regularly used apps directly from the RAM. Instead of fetching and restoring the data from the hard drive.

Hence as a result, your most used applications run pretty smoothly. As fetching data from ram is faster than fetching from the hard drive.

Overall, the Service Host Superfetch helps in boosting your boot time, quickly loads your commonly used applications and learns your usage pattern.

But the question still remains, why does it report high disk usage? Well here is the answer:

Why does it report high disk usage?

In short, you can say that Superfetch stands for drive caching. It continuously copies all your commonly used files to RAM, as a result, they work faster. But, the other way your system also needs to have the latest and upgraded hardware so it can do the job pretty well.

And just in case if your smartphone does not have upgraded hardware. As a result, you get the high disk usage error.  However, Superfetch high disk usage is not as dangerous as it seems. In fact, all it is trying to do is complete the I/O requests by using your computer’s maximum power.

It mainly cleans up your RAM and copies new files to it which you were recently using. And once this process is completed the high disk usage warning should be gone.

Now coming to the most important question. Should you disable Service Host Superfetch or not? Well here is the answer:

Should you diable Service Host Superfetch?

As we just mentioned that high disk usage is not always a problem.  Even the Superfetch program is only trying to make your machine run smoothly.

But if you are using your PC for some time now, then the host service already have started to fill your RAP with frequently used files. And as the size of these files increases over time, your PC will see the high disk usage warning quite often, and it is a good idea to disable it.

How to disable Service Host Superfetch?

Disabling Service Host Superfetch is not so hard task. Also, the good part of this is that even if you disable it, your system won’t face any issues. However, while accessing some of your commonly used apps a may feel a little lag.

There are two ways to disable superfetch. Simply go through these following steps and choose your preferred method:

Disable it From Systems:

  • First of all press Windows Key + R button together. This will open the Run dialogue box.


  • Over here you have to type down services.msc and hit the enter button. This will bring up the Services window.
  • From here, you have to look for Superfetch. (Simply press S to look for it easily.)
  • Then right-click on the superfetch and select properties.

Service Host Superfetch

  • From the Properties menu, click on the stop button.
  • At the end from the startup type (drop-down menu) click disabled.

enable superfetch

That’s it, now go ahead and check if you are still getting the high disk usage error or not. Well, you can also do the same by using the Windows registry. To do so, you have to follow these steps:

Disable it From Windows Registry:

First of all press Windows key + R button to bring up the RUN box.


  • Over here you have to type down Regedit and hit the enter button.
  • Once the registry window opens up, you have to locate the HKEY_LOCAL_MACHINE folder and open it.
  • Then you will have to navigate to this path: SYSTEM > CurrentControlSet > Control > Session Manager > MemoryManagement > PrefetchParameters
  • Next, you have to double click on the ‘Enable Superfetch’ from the right side.

enable superfetchThat’s it, now go ahead and check the Task Manager and see if you are still getting high disk usage error or not.

Final Words:

So that was all for the Service Host Superfetch error. However, if you do not want to face any lag while opening up your most commonly used applications. Then do consider upgrading your hardware. Anyway, if you have any more questions to ask, do feel free to comment below.

Read More:

Leave a Reply

Your email address will not be published. Required fields are marked *