I don’t know if I should create a new thread to have the issue look at, as this one title’s is asking what is “is fssfltr_tdi.sys”, which we all could read that is a Windows’ file.

What I would like to know is how to apply the latest Avast update avoiding blue screening the system with it?
How do we get the memo to the Avast update that this is a system file that it should avoid conflict with?

Thanks for your help in advance