If a standard uninstall doesn't work, leftover registry keys or "ghost" files might be causing the error. Stardock provides a specific Purge Bat File for a deep clean. Apply the Default Theme
: Set your desktop back to the default Microsoft theme before proceeding.
Sometimes, a third-party skin (downloaded from WinCustomize) contains malformed PNG assets or an invalid .uis file. This corrupts the local cache located at: %LocalAppData%\Stardock\WindowBlinds\Cache windowblinds has detected a problem with core files new
Right-click wb11config.exe in your installation folder and select . If you see an error there, your certificates are out of date.
New installations may fail if OS root certificates haven't updated yet. If a standard uninstall doesn't work, leftover registry
Follow these methods in order. Most users will find success by Method 1 or 2.
Open a support ticket at and attach the following: New installations may fail if OS root certificates
return report