Stardock provides a specific (available on their official support forums ) that removes registry keys and leftover files that a standard uninstaller might miss.
Temporarily disable your antivirus, then try to install or run WindowBlinds again. If it works, you know where the conflict lies.
If you use other UI mods, they might be fighting for control over the taskbar or File Explorer.
Fixing the "WindowBlinds Has Detected a Problem with Core Files" Error
If you are seeing the message "," you aren’t alone. This error typically surfaces during a fresh installation or immediately after a major Windows update, often signaling that the software’s essential components—like WBCore.exe —are being blocked or have failed a security check.