The last version that runs on my windows 10 EliteBook 8560W its verson 3.9.
Ones any version of luban 4.0 and above installed, when starting software: its stays on a white screen after the “luban starring animation”.
Have you tried fully uninstalling Luban 3 before installing Luban 4? Be sure to write down or backup any custom machine profiles you have saved in Luban 3. As I recall, Luban 4 will NOT automatically transfer them over.
Haven’t heard of this happening in a while, but a ways back the solve was to find all the hidden preferences files that sometimes an uninstall skips and delete them manually.
Not sure where those are on a pc.