OK, thanks for tips. I'll try option 2 first.

Many thanks,

1. Time stamps corresponding to the MBAM scan times.
2. I didn't uninstall MBAM before upgrade.
3. I can see complete scan logs in history with no threats detected.

1. Yes it's Premium version.
2. Daily scan is scheduled to run at 3:AM.

Welcome,
I have a problem. Every day I have this error in event viewer, system log:
{Registry Hive Recovered} Registry hive (file):\??\C:\ProgramData\Malwarebytes\Malwarebytes...