When I try to attempt to remove the virus namely TrojanDownloader:win32/Nistio. A microsoft security essentials encountered an error. And the error was, Security Essentials could not apply the action(s) you selected. One or more actions could not be completed successfully.
Security essentials encountered the following error: Error code 0x800700df.
Please see my uploaded image,
Please help me from this problem,
Thanks
Security Essentials Code Error (Trojan Virus)
Hello,
You could try to run Windows in Safe mode (F8 menu during system start), execute the scan from here and to not quarantine, but delete infected files.
On the other side I would not trust such a compromised system any more. They tend to hide some components, which will often trigger virus downloads again.
Instead backup your data (scan it as well), delete the OS volume and reinstall the operating system and the applications.
Best greetings
Daniel Stutter
Security Essentials Code Error (Trojan Virus)
Hi Olfgun Modinsson
Having a computer virus like that is such a pain in your head. I think you should get a good Antivirus such as Avast, McAfee, etc. then scan your computer in full system scan. Also you can check out another Techyv thread which is addressed your problem. Go this page and get more and more remedy to fix this issue.
Error code 0x80501001 Microsoft Security Essentials