Delphi 10.4.2 Startup Error: socket error [How to Solve]

Modify registry

PC\HKEY_CURRENT_USER\SOFTWARE\Embarcadero\BDS\21.0\Known IDE Packages
Change the value of $(BDS)\Bin\LivePreview270.bpl
Embarcadero FireUI Live Preview Package
to
__Embarcadero FireUI Live Preview Package

Delphipraxis

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