2020 Rev. 13.5.0 With Key: Smadav Pro

Best practice: Keep Windows Defender active. Use Smadar Pro as a USB scanner. Turn off Smadav’s real-time protection for files to avoid conflicts.

Assuming you have a legally purchased key from 2020: Smadav Pro 2020 Rev. 13.5.0 with Key

A: Uninstall Smadav, delete the folder C:\Program Files\Smadav, then run regedit and delete HKEY_CURRENT_USER\Software\Smadav. Reinstall the free version. Best practice: Keep Windows Defender active