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Cannot connect to database master at SQL Server at server_name. The database might not exist, or the current user does not have permission to connect to Error : "Cannot connect to database master at SQL Server at server_name. The database might not exist, or the current user does not have permission to connect to it"  Solution : Open the Windows Firewall with Advanced Services and add an inbound rule to allow traffic over port 1433. https://youtu.be/GIwcnNZWui4

Error  : There was an error while running  Install Prerequisite (prerequisiteinstaller.exe)    “Failed to create configuration database. An exception of type Microsoft.SharePoint.Upgrade.SPUpgradeException was thrown. Additional exception information: One or more types failed to load. Please refer to the upgrade log for more details. ” Solution : you may face this issue while installing manually instead of using the prerequisiteinstaller.exe Uninstall  WcfDataServices   and then reinstalling the WcfDataServices using the prequisiteinstaller.exe automatically or using command with the appropriate parameter. prerequisiteinstaller.exe /wcfdataservices56: WcfDataServices.exe location Then delete two databases from SQL Server which are created by previous psconfiguration and run Products Configuration Wizard again, it will be successful.       Click to GetHelp

“ This program can’t start because api-ms-win-crt-heap-l1-1-0.dll is missing from your computer. ” error while running SharePoint Products Configuration Wizard. *Missing update patches " Windows 10 Universal Runtime update " for Windows Server 2012 R2. * Installation of Windows Server 2012 R2 patch  KB299926  is required so as to resolve this issue. But  “ The update is not applicable to your computer. ” error came after that as below. This is because Windows 10 Universal C Runtime  KB2999226  is dependent on a Windows Server 2012 R2 Cumulative Update package in  KB2919355 . Check windows updates, install patch  KB2919355  and “The update is not applicable to your computer.”error will be resolved and after which there will be no error in installation of  the Windows 10 Universal C Runtime. Have a look into my previous post  Install Prerequisite (prerequisiteinstaller.exe) SharePoint 2016 . Unable to install Microsoft...