Windows Defender

By Guest Augs154
July 3, 2018 in Windows 8

https://windowsbb.com/topic/120562-windows-defender/

Followers 0

Recommended Posts

Guest Augs154

Posted July 3, 2018

When trying to turn on Windows Defender, I receive the following message:

Error 577: Windows cannot verify the digital signature for this file. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source.

I have a command prompt virus, and I'm not sure if it shut off Defender or if it was shut off accidentally. I have not installed new hardware/software in over 1 year.