This thread's last reply is from July 29, 2017, 6:43 PM UTC. Software, malware, and removal-tool
advice below may be out of date — treat specific steps and download links with caution.
Tried turning/updating on my windows defender, and got error code 0x80070424 saying that specified service does not exist as an installed service. Also downloaded avast software and the UI failed to load. What should I do?
It's possible your computer may be infected by malware. In order to receive assistance in accurately assessing and resolving your computer problems, specific logs will be needed. Please read and follow the instructions posted
>here<.
As this topic is outside the scope of the "Software Support" forum, it will now be closed. Please follow the instructions at the above link for receiving help in the "Infected? Virus, malware, adware, ransomware, oh my!" forum. 
