DavidR
4
I suspect that this is all down to security conflict.
Having two resident AVs isn’t advised, even if you disable one the low level drivers are still likely to be loaded and it is these that could come into conflict.
AdAware AV as far as I’m aware is resident, so should really be uninstalled. I would also suggest you uninstall Advanced systemcare 6, I’m not sure of it resident status, etc. but, I’m ware of these tweakers. It is from IOBIT just search the forums or google for IOBIT and Malware Bytes and you will get the picture.
I would also suggest removing S&D and replace it with MalwareBytes, it is I believe better than S&D and works fine with avast.