Re: Unable to install Windows Server Backup on Windows 2019 Essentials

This worked for me!  I found that you also do not need to actually copy the entire WinSxS folder, you can point to it across a network path.  Just replace "HOSTNAME" with the name or IP address of the other machine that has a good WinSxS folder.  Much faster than copying gigs of files!

Dism /Online /Enable-Feature /FeatureName:WindowsServerBackup /Source:\\HOSTNAME\c$\Windows\WinSxS /LimitAccess