Please help! Massive 1.5.11 crashes repeatedly!

Hello,

do you see 3 lines right from "massive" in the browser, you can see it in that picture as an example

Absolutely, that means this is a vst3 plugin and i would advise to always use vst3 if you can. Massive has now a vst3 version so use that. I could only test on my win11 and cubase 12 rig and it worked like it should.

If it even crashes as stand alone app then maybe windows prevents it from starting? How does it look like if you want to start it stand alone? You could try to uninstall and use the regcleaning tool, then reinstall. Ohh and try to start massive stand alone as admin. https://support.native-instruments.com/hc/en-us/articles/115003509269-Fixing-Software-Update-Installation-Issues-Windows-

It may sound stupid but can you try to add the plugin folder to that https://support.microsoft.com/en-us/windows/add-an-exclusion-to-windows-security-811816c0-4dfd-af4a-47e4-c301afe13b26#ID0EBF=Windows_10 if it's not working you can delete it from the exclusion