Hi Vapor,
address 0x7c90100b contains ntdll!RtlEnterCriticalSection fnc code; since AvastEmUpdate module itself is not using critical sections at all, this problem is not easy to solve. Are you completely sure, that there is no other security solution which filters API calls?
Well that’s where I’m a bit of fault, my apology. What i have missed to mention that I do run Outpost Firewall Pro and I did check if there could have been filtering blockade, I discover that outpost was blocking AvastEmUpdate, it wouldn’t even pop the warning about it. By double clicking the AvastEmUpdate outpost would create a rule of allowance and problem was gone, and no I`ve never had to put avast for outpost exclusion, never had any issues.
But I do have a question how exactly emergency update benefits us, is there detail description I can read about. Just like with all the extras avast has added to its software (safe zone, sandbox.ext.) I don’t use it so I’m wonder if I would even want that function to start with my windows.
Thank you