MauriceModV

Yeah sorry, wrong terminology, I should have wrote: Defender gets deactivated on Eset installation.

Sorry for the late reply, had to verify on more than 1 PC. At first, yes it was the active Defender! (in conjunction with the security update and Eset) Typically ESET deactivates the Defender on installation and everything is fine, I don't know why and I can't tell atm for sure which case is correct: - Defender was still running on these few PCs, never had a Problem until the Security Update changed something - Defender was not runnung but the Security Update activates it for whatever reason, bug, ... I'm not done fixing all PCs, maybe there is one PC left to find out which case is correct. Thanks to all!

We are talking about basic windows explorer on Win10 64bit - copy & paste a folder with files in it. Or in the other case Office 365 in 64bit and opening an attached pdf from external domains, mails from the own domain have no issues. It works either without Eset Antivirus or one of the Win Updates installed. There is no doubt Eset has some interaction with these Updates in our environment. Meanwhile I have done a clean new installation on one of the PCs with these issue. Everything worked fine until I've installed Eset. 🤔🙁 On the Images you can see there is not much stuff installed and the WinUpdates aren't listed under updates, I think they are part of the installation, the image was downloaded yesterday.

Everything is on 64bit, I double checked it.

Sorry, that is not helping, everything is on 64bit.

Ok, so here is are the log files. eea_logs.zip

I Know, but i haven't found other people having issues with folder/file copy or with eset antivirus. It is either Win or Eset. To be clear, we still have more maschines without any problem.

Some Addition: I'm not 100% sure if its related to policy... and in some rare moments the attachment of the mail opens if you wait for a few minutes or a few files are still copied on the file share. In the other cases Outlook stops responding and the file transfer window keeps at 0kb transfered. Windows Defender is not running. I have the logs, but no support case open atm, so where to send the log files?

Hi, we encounter different issues after installing KB5025221 or KB5026361 on a few machines with Eset Endpoint Antivirus. 1) You can't open attachments in Outlook from external domains 2) You can't copy folders with files on fileshares While testing different things I saw, that on these machines one or all policies don't work. First of all you shoudn't be able to open the eset configuraton without password and different settings aren't set correctly, while some other settings are still ok. At the moment the only way to resolve the problems is to remove Eset or remove the Win Updates. I've tried to reinstall Eset, do repairs like sfc and so on but no luck yet. Any chance to force a repair or load the correct policies on these machines? Any idea? Greetings Maurice