IAStorDataSvc (32 bit) High CPU Usage Caused on Windows 10 [Solved]

Sophie Luo, in Common error Tags: PC performance



Windows 10 sure does bring a lot of advantages to its users, but on other occasions, it can be quite a headache. Unreasonable high CPU usage in Task Manager is one. When you are having unreasonably high CPU, Memory or Disk usage, the fan for your PC will be making unpleasant noise and the temperature of your PC will also rise. And there is a big possibility that you will not be able to tell exactly which application is the culprit that is causing this problem. 

In this post, we will be discussing one of the most commonly seen problems in Task Manager: high CPU usage caused by IAStoreDataSvc (32 bit)

IAStorDataSvc is the name of the service translated as Intel Storage Data Service used by the Intel Rapid Storage Technology. So we will be dealing with Intel Rapid Storage Technology device. 

Step One: Uninstall Intel Rapid Storage Technology 
Step Two: Update Intel Chipset SATA RAID Controller driver
Step Three: Disable the service
Other options 


Step One: Uninstall Intel Rapid Storage Technology

1) Press Windows key and R at the same time, then type appwiz.cpl in the search box and hit Enter




2) Then locate Intel Rapid Storage Technology and choose the Uninstall button on the top bar. 



3) Wait for the uninstall process to finish. Then restart your computer.



Step Two: Update Intel Chipset SATA RAID Controller driver

1) Now go to support website of Intel, type in keyword “Intel Rapid Storage Technology” and hit Enter


2) Choose the correct device driver that suits your operating system and click the name of it to go to the download page. 


3) On the download page, click the blue button to get the Intel Rapid Storage Technology driver downloaded. 


4) Then follow the instructions here on this post to get your device driver updated. 

5) After the installation of the new driver, restart your computer to make the changes to take effect. 

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Step Three: Disable the service

1) Press Windows key and R at the same time, then type in services.msc and hit Enter.


2) Press “I” (for Intel) and faster locate the Intel Rapid Storage Technology option, then double click it. 


3) Change the Startup type to Disabled. After the change, press Apply and OK to save the change. 


4) Then exit Services window. 


Other options 

If the above methods are not helpful enough, here are some more alternatives that you might want to have a try: 

1) Uninstall antivirus programs. Check to see if some of your antivirus program is causing this problem. Users have reported that the problem is gone when they uninstall Norton and AVG. You should check if this is help. 

2) Change BIOS settings. Some users report that by changing the SATA controller to AHCI on BIOS settings do the trick. But please do not attempt to use this method unless you are well aware of what you are doing since faulty changes in BIOS settings could cause revocable errors to your computer. 

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