An Error Has Been Signaled By The Protected Object Server File Synsoacc.dll ���

Consider upgrading to Windows 10 or 11 if your hardware supports it. These modern operating systems have completely deprecated the old Live Sync components, making errors like this a thing of the past.

In an , run:

Download the latest version from the Official Steinberg Support page. Uninstall your current eLCC via the Control Panel. Consider upgrading to Windows 10 or 11 if

Overzealous antivirus may quarantine or block synsoacc.dll as a false positive, especially if it detects unusual access patterns.

sfc /scannow

Follow these methods in order, from simplest to most thorough. Back up your registry and important data before proceeding.

Then verify the Kerberos ticket cache:

Reboot and attempt to re-authenticate.

Temporarily uninstall any non-Microsoft antivirus or EDR software. Reboot into Safe Mode with Networking . If the error disappears in Safe Mode, the culprit is a third-party filter driver or security hook. Reinstall the security software but add an exclusion for C:\Windows\System32\synsoacc.dll and lsass.exe . Uninstall your current eLCC via the Control Panel