Hello, I have an ASUS touchscreen laptoplabtop and yesterday, randomly my labtop stopped working when I restarted it I tried to run Windows defender but it was stopped and when I tried to start it again, I wowoulget the error 577 which is in the picture. And then I saw tha. Norton was installed by itself so I went to control panel and I uninstalled Norton but defender still would not start. Any help would be appreciated. Thanks
I couldn't upload the picture, but the error said" Windows cannot verify the digital signature for this file. A recent hardware or software change mmight have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source." Also the startup type is set on manual and I can't change it.
Edited by abdallahshaikha, 20 December 2014 - 12:23 PM.