Microsoft mail not synchronizing due to Kasperky antivirus

[Wim]

The poblem came up suddenly. When is deactivate Kaspersky, the problem is solved. The same with Microsoft updates. Has anyone the same problem and do you know the solution

[Berny]

@Wim  Welcome.

Please uninstall Kaspersky + reboot , and download / reinstall KAV ?

[Igor Kurzin]

Hi @Wim, before proceeding with reisntallation as per advice from Berny, try this: 

1. Disable Self-Defense via Settings -> General
2. Exit Kaspersky product
3. Go to folder C:\ProgramData\Kaspersky Lab\AVP21.3\Report\ and delete all the contents (files and folders)
4. Run Kaspersky product
5. Enable Self-Defense
6. Check the issue.

[Wim]

Problem solved. Thanks