Question. Do I need to remove vse 8.5 hotfix 8 before i install vse 8.8 on a PC?
I apologize but I am not clear about the question.
Are you asking that can you upgrade VSE to 8.8 from 8.5 patch8? If yes then you can upgrade to VSE 8.8 from version 8.5.
Make sure that you are running agent version 4.x.
Upgrade will not work with agent 3.6.x.