Sorry to hear you are having issues. Need more information on your system. Windows 10 full version numbers. You're using Windowblinds, yes? If so, which version and which WB theme you have on? Did you modify something via Windowblinds "modify style" panel? Do you have Start11 or Start10? Which version? What you actually mean by "interface is purple"? If would be easier if you could post some screenshots.
Stardock Community Assistant.