Clip Studio Paint becomes unstable due to Microsoft Defender settings.

Problem

We have been informed that the issues below may occur if the Windows Security System (Microsoft Defender)’s [Controlled Folder Access] is turned on.


  • Clip Studio cannot be installed, cannot be started.
  • Tool settings cannot be saved
  • “Unable to find file.” error displays and file cannot be saved
  • The error message "Failed to import the tool settings file and brush shape preset settings file successfully." appears, and Clip Studio Paint cannot be started without deleting these files.



Issues confirmed in:

  • Windows 10



Solutions

Note: Displayed items may vary depending on the operating system.


Follow the methods below and see if the situation improves.


1. Select the Windows Start button, and click Settings.



2. Select Updates and Security.


3. On the left side of the screen, select Windows Security > Open Windows Security.



4. Select Virus & Threat Protection.



5. From Virus & Threat Protection settings, select Manage Settings.



6. Select "Manage Controlled Folder Access"



7. Turn off the controlled folder access setting.



8. Uninstall Clip Studio Paint, then Clip Studio.


9. Reinstall Clip Studio Paint.



*Uninstalling the PC version of CLIP STUDIO PAINT will not delete drawings, materials, or other settings.