Antivirus antispyware protection not updating
"Upon reports of frozen login screens, we released micro-updates via our emergency updater tool to resolve," the company said in a statement sent to Dark Reading."Avast users need only boot their machine and let stand at the login screen for approximately 15 minutes while the updater runs in the background."Sophos has received reports of computers failing to boot," the company stated in an advisory.
Second, Microsoft is updating the core components of Windows more frequently than in the past.You may see an error message – Protection definition update failed with error code 2147023278.To address the issue, you may try these troubleshooting steps : 1] Run the Windows Update Troubleshooter from Microsoft.Sometimes malware can turn off updating of security software.4] Uncheck Automatic Updates, Uncheck Recommended Updates and Uncheck use Microsoft Update Service.