Unable to Install SQL Server 2019

Question

unable to install sql server (setup.exe) exit code (decimal) 2147467259

Answer 1

Hi @Prashuk Jain ,

You need to uninstall the SQL Server cleanly and then reinstall it.
Before reinstall, please follow the below steps to remove all components of previous installed SQL Server completely:

1. Remove all SQL Server components from 'Programs and Features'
2. Backup the registry
3. Delete the following keys in regedit:
   --HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server
   --HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSSQLServer
4. Go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall and delete all the sub-keys referencing SQL Server
5. Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services and delete all the keys referencing SQL Server
6. Reboot the machine
   In addition, please use an administrator account to reinstall SQL Server on your computer(Right click->run as administrator).
   If the above method does not work, please provide a detail.txt to help troubleshoot.

Best regards,
Seeya

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Answer 2

The screenshot is useless.
Please View and Read SQL Server Setup Log Files for more details.

Answer 3

Warning ******************
2022-08-15 13:08:52.31 spid10s SQL Server started in single-user mode. This an informational message only. No user action is required.
2022-08-15 13:08:52.31 spid10s Starting up database 'master'.
2022-08-15 13:08:52.32 spid10s There have been 256 misaligned log IOs which required falling back to synchronous IO. The current IO is on file C:\Program Files\Microsoft SQL Server\MSSQL15.SQLEXPRESS05\MSSQL\Template Data\master.mdf.
2022-08-15 13:08:52.41 Server CLR version v4.0.30319 loaded.
2022-08-15 13:08:52.45 Server Common language runtime (CLR) functionality initialized using CLR version v4.0.30319 from C:\Windows\Microsoft.NET\Framework64\v4.0.30319.