Useful scripts

Open the command prompt as Administrator and run the following commands: dism /online /cleanup-image /scanhealth dism /online /cleanup-image /checkhealth dism /online /cleanup-image /restorehealth Mount the Windows Server 2016 ISO as a drive (E: in this case) and run the following command. Please check the WIM version before selecting it. dism /online /cleanup-image /restorehealth /source:WIM:E:\sources\install.wim:1 /limitaccess sfc /scannow Check Windows Update and install any pending updates. Reboot the server. To check the WIM version for various versions of OS, run the following command: dism /Get-WimInfo /WimFile:E:\sources\install.wim wim:1 – Windows Server 2019 Standard Installation: Server Core wim:2 – Windows Server 2019 Standard (Desktop Experience) wim:3 – Windows Server 2019 DataCenter Installation: Server Core wim:4 – Windows Server 2019 DataCenter (Desktop Experience)

Suppose -  The server name is - Server1 Alias name is - App1 AD Domain name is - company.local First, create a CNAME record for App1 against Server1 in DNS. Let it replicate properly. Once replication is done, login to Server1 and run the following commands in elevated mode: netdom computername server1 /add:app1 netdom computername server1 /add:app1.company.local restart server1.