If it fails in the same way, go to the Microsoft Support site , enter the error number in the Search box to look for the error code. Contact Microsoft Technical Support. Description: Microsoft Defender Antivirus client is up and running in a healthy state. Description: Controlled Folder Access has blocked an untrusted process from potentially modifying disk sectors. The Microsoft Defender Antivirus client is in a healthy state.
This event is reported on an hourly basis. Description: Antivirus signature version has been updated. This event is reported when signatures are successfully updated. Description: Microsoft Defender Antivirus has encountered an error trying to update signatures.
User action: This error occurs when there is a problem updating definitions. To troubleshoot this event: Update definitions and force a rescan directly on the endpoint. Description: Microsoft Defender Antivirus engine version has been updated. This event is reported when the antimalware engine is successfully updated. Description: Microsoft Defender Antivirus has encountered an error trying to update the engine.
User action: The Microsoft Defender Antivirus client update failed. This event occurs when the client fails to update itself. This event is usually due to an interruption in network connectivity during an update.
The antimalware engine will attempt to load the last-known good set of definitions. Description: Microsoft Defender Antivirus has encountered an error trying to load signatures and will attempt reverting back to a known-good set of signatures. This error can occur when the client encounters an error while trying to load the definitions, or if the file is corrupt. Microsoft Defender Antivirus will attempt to revert back to a known-good set of definitions.
To troubleshoot this event: Restart the computer and try again. Download the latest definitions from the Microsoft Security Intelligence site. Note: The size of the definitions file downloaded from the site can exceed 60 MB and should not be used as a long-term solution for updating definitions.
The antimalware platform will load the last-known good antimalware engine and attempt to update. Description: Microsoft Defender Antivirus could not load antimalware engine because current platform version is not supported. Microsoft Defender Antivirus will revert back to the last known-good engine and a platform update will be attempted. Description: Microsoft Defender Antivirus has encountered an error trying to update the platform.
Download the latest platform to maintain up-to-date protection. Description: Microsoft Defender Antivirus will soon require a newer platform version to support future versions of the antimalware engine. Download the latest Microsoft Defender Antivirus platform to maintain the best level of protection available.
Description: Microsoft Defender Antivirus used Dynamic Signature Service to retrieve additional signatures to help protect your machine. User action: No action is necessary. This event is reported when the Dynamic Signature Service successfully deletes out-of-date dynamic definitions. User action: Check your Internet connectivity settings. Description: Microsoft Defender Antivirus downloaded a clean file.
Description: Microsoft Defender Antivirus has encountered an error trying to download a clean file. The Microsoft Defender Antivirus client encountered an error when using the Dynamic Signature Service to download the latest definitions to a specific threat.
This error is likely caused by a network connectivity issue. Description: Microsoft Defender Antivirus downloaded and configured offline antivirus to run on the next reboot. Description: Microsoft Defender Antivirus has encountered an error trying to download and configure offline antivirus. Description: The support for your operating system will expire shortly.
Running Microsoft Defender Antivirus on an out of support operating system is not an adequate solution to protect against threats. You must upgrade the operating system for continued support.
Description: The support for your operating system has expired. Microsoft Defender Antivirus is no longer supported on your operating system, has stopped functioning, and is not protecting against malware threats.
Reason: The reason Microsoft Defender Antivirus real-time protection has restarted a feature. User action: You should restart the system then run a full scan because it's possible the system was not protected for some time. The Microsoft Defender Antivirus client's real-time protection feature encountered an error because one of the services failed to start.
The following files located under the respective directories should be excluded from anti-virus scan. On the machine where Patch Manager Plus is installed, notificationserver. Here is a sample document, to know more excluding folders from Symantec End Point, you can refer this for more details: How to add an exception to SEP? I cleaned out the registry and reinstalled norton and I still can't run the scan.
Error The process terminated unexpectedly. Posted Aug 10, PM. I still am unable to scan in normal mode. I tried to reinstall Symantec and now I am getting this error:. Error Verify that you have suffcient privileges to start system services. Posted Aug 17, PM. I take that by the lack of response that either Symantec doesn't care about this or that they are unsure how to fix it.
It is not the same error as the other tech at the University. We will be having students bringing their Vista machines on campus in 2 weeks and we were just hoping to have a fix for this in case there are other studnets that run into the same problem.
We require Symantec as the anti-virus on campus, how can we do this when it will not install on some machines so we go to Symantec for help and they blow us off? There is only so much we can do on our side. Posted Aug 19, AM. Is symantec protecting my computer even without running scans?
Should I try to uninstall and reinstall it? Should I use window's defender until you have the patch out? Posted Aug 19, PM. I may be less sophisticated than other participants, so forgive me if I did not understand critical parts of your response.
What is the phone to call? How would I do so? All I know is that I am getting these error messages when I try to do a scan. I am unable to scan any files. Whenever I tried, i get a message "could not start scan. RE: could not start scan.
Posted Apr 27, PM. Usually this happens if a user has limited access. Posted May 03, PM. Mine is an corporate edition i think and since i've installed Windows Service Pack 3 i get the same problem. After this, the Virus Scan started immediately and found some viruses too Suspiciuos. Hope this helps you! Posted May 04, AM. If some virus is present then that might be prventing you to scan. Your definition update might be corrupted that's why you encounter this concern.
Thanks, jun. Posted May 22, PM. Posted May 24, PM. Posted May 28, PM. I actually deleted that along with the other Symantic files and programs, and then re-installed everything fresh from the site. When I did, it still gave me the same scan engine error problem. That's when I thought it might be caused by a Microsoft update.
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