When you ask a question you need to provide some basic information
-Forum quick start https://forums.adobe.com/docs/DOC-5601
Mac or Windows, and EXACTLY which version of the operating system?
Recent Mac AND Windows operating systems have been known to cause "odd" problems
Are you using a computer Administrator account with full read/write permission?
What is the exact error message that you see?
your right so here is my info
mac os sierra
recent iMac 2015
not such problems before, I think it started after update sierra
after starting up there is an app jumping up and down on the dock bar
it is in programs/adobe/....../common/dynamiclink/dynamiclinkmanager
it stops after a minute jumping
what is it for ?? and can i delete it