How to Fix Core Isolation Blocked by ew_usbccgpfilter.sys?

Sometimes, when you connect your phone or external device to the PC or laptop, you may meet the “ew_usbccgpfilter.sys driver failed to load” issue. Then, you may find the core isolation has been turned off due to the ew_usbccgpfilter.sys driver.  

The problem is not limited to HiSuite. If these drivers are installed for any reason (simply connecting the phone to a Windows machine), they block the mentioned Windows feature. The following drivers are identified as preventing memory integrity or core isolation from being on.

• ew_usbccgpfilter.sys
• hw_cdcacm.sys
• hw_quubmdm.sys
• hw_usbdev.sys
• hw_cdcacm.sys
• hw_quubmdm.sys

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Fix 1: Uninstall the Incompatible Driver

You can fix the ew_usbccgpfilter.sys issue by uninstalling the HiSuite software. Before uninstalling the Hisuite software, you need to uninstall the drivers related to Hisuite first. Follow the below guide to uninstall the driver:

1. Press the Windows + R keys together to open the Run dialogue box. Then, type %temp%/../hisuite in it.

2. Go to userdata>driver>all>DriverUninstall. Find and right-click DriverUninstall to choose Run as administrator.

3. Go to the core isolation part in Windows Security. Try to turn on the Memory integrity again and check if it can be turned on.

4. If step 3 fails, click Review incompatible driver and you may see one driver remaining undeleted. Go to C:\Windows\System32\drivers, find the ew_usbccgpfilter.sys driver, and delete it.

5. If the Memory integrity still cannot be enabled, please check if there are any other incompatible drivers from other providers.

Fix 2: Use Driver Store Explorer

If the last method is not working, you can try to delete the ew_usbccgpfilter.sys driver with Driver Store Explorer. It’s a third-party program, which allows you to delete one or multiple driver packages from the store. Besides, it can detect old and not used driver packages.

1. Go to GitHub’s official website to scroll down the page to find the Driver Store Explorer downloading link.

2. After downloading it, you can choose to run it to enter its main interface.

3. Then, it will start to load the drivers on your machine.

4. Find the ew_usbccgpfilter.sys driver and check the box next to it. Then, click the Delete Driver(s) button.

Fix 3: Run SFC and DISM

To repair the “core isolation can’t turn on due to ew_usbccgpfilter.sys” error, you can run SFC (System File Checker) and DISM (Deployment Image Servicing and Management) to repair corrupted system files.

Step 1: Run Command Prompt as administrator. Type sfc /scannow and press Enter.

Step 2: Once done, reboot your system. If the issue still exists, run Command Prompt as administrator again.

Step 3: Then type the following commands and press Enter after each one.

• DISM /Online /Cleanup-Image /CheckHealth
• DISM /Online /Cleanup-Image /ScanHealth
• DISM /Online /Cleanup-Image /RestoreHealth

Final Words

To sum up, now you can know how to fix the “core isolation blocked by ew_usbccgpfilter.sys” issue. If you want to fix the issue, you can take the above solutions.