Fixes for Unistack Service Group High CPU Usage on Windows

The Unistack Service Group contains a service named UniStore service. Sometimes you may notice this service consuming a lot of resources. What can you do? This MiniTool post teaches you to fix the Unistack Service Group high CPU usage issue.

Unistack Service Group High CPU Usage

The “Background Processes” section in the Task Manager that helps you manage what’s running in the background of your Windows, contains services and processes from Windows and third-party applications. One of these services is UnistackSvcGroup.

You may notice this service running in Task Manager and consuming a lot of resources. It belongs to the Windows Store, so unistacksvcgroup high CPU usage may be related to the Store updating your apps. Since it’s taking up a lot of system resources, it may cause your PC to crash, run slowly, or run out of memory. To fix Unistack Service Group high CPU usage Windows 10, here are some effective ways for you. Keep reading!

How to Fix Unistack Service Group High CPU Usage

Fix 1: Disable UnistackSvc Service via Registry Editor

The Registry Editor allows you to change settings that are not displayed in the user interface, including which applications are installed and which file types certain applications can open. Here you can use it to disable UnistackSvc Service. Work with the following steps.

Step 1: Right-click on the Start button and choose Run to open the Run dialog.

Step 2: Type regedit in the Open box and press Enter.

Step 3: When the UAC window pops up, click on Yes to continue.

Step 4: Navigate to the following address:

Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UnistoreSvc

Step 5: In the right pane, double-click on Start. Then, you will see 3 in the Value box, which means that this service is manual.

Step 6: Type 4 in the Value box, which can disable the service, and click on OK.

Step 7: Find UserDataSvc from the left pane and repeat the step 5 and step 6.

Fix 2: Turn off Automatic Updates for Apps

This service is used by Microsoft Store to update apps, so you can try stopping the automatic update app option in Microsoft Store to fix Unistack Service Group high CPU usage. Follow the steps below to disable this option.

Step 1: Type Microsoft Store in the Windows search box and press Enter.

Step 2: Click on Profile in the top right corner and choose Settings.

Step 3: Toggle off the option for App updates.

Fix 3: Delete Contents of UnistoreDB Folder

This service uses some files in the UnistoreDB folder. When this problem occurs, you can choose to delete the contents of UnistoreDB folder. Here is how you can do it.

Step 1: Right-click on the Start button and select Task Manager to open it.

Step 2: Locate the service and right-click on it to choose End Task.

Step 3: Repeat step 2 for all the Unistore related services you can find.

Step 4: Press the Win + E keys to open the File Explorer, type the following address in the address bar, and press Enter:

C:\Users\username\AppData\Local\Comms\UnistoreDB

Tips:

Replace username with your actual computer name.

Step 5: Select all the files and click on Delete.

Fix 4: Perform a Clean Boot

Performing a clean boot can disable all non-essential programs and applications that typically launch at system startup. This helps you identify the source of the problem by detecting if any background programs are causing the conflict. To do so.

Step 1: Press the Win + R keys to open the Run dialog, type msconfig, and click on OK.

Step 2: Go to the Services tab, check the Hide all Microsoft services, and click on Disable all.

Step 3: Change to the Startup tab and click on Open Task Manager.

Step 4: Right-click on all the services and choose Disable. Then restart your computer.

Step 5: After restarting, enable the services one by one to determine which one is causing the issue and then disable it.

Fix 5: Update Your Windows

An outdated Windows may be one of the causes of this issue. In this case, you can try updating your Windows to see if it can be fixed. Here are the steps.

Step 1: Press the Win + I keys to open the Settings app.

Step 2: Click on Update & Security > Windows Update.

Step 3: In the right pane, click on the Check for updates button.

If there is an available update, click on Download & install to get it.

Tips:

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Final Words

When you encounter the Unistack Service Group high CPU usage issue, you can try the methods listed in this article. Hope they can do you a favor.

About The Author

Chelsea

Position: Columnist

Chelsea graduated from university with a major in English. She has a strong interest in English writing. It is this passion for writing that led her to become an English editor. Her articles mainly focus on data recovery and other computer industry news. As an energetic and outgoing girl, Chelsea enjoys listening to music, singing, riding bikes, and eating in her spare time.

How to Fix Unistack Service Group High CPU Usage on Windows