- Plesk Onyx for Windows
Domains > example.com > File Manager works slow.
Windows Defender real-time protection option is turned on in Start > Windows Defender > Virus and threat protection settings.
This is a Plesk bug #PPPM-8430 that is planned to be fixed in future Plesk updates.
As a workaround, disable Windows Defender real-time protection:
Connect to the server via RDP.
Open Windows Defender:
Start > Windows Defender > Virus and threat protection settings
Disable Real-Time protection: