Hi @Sabith Saqlain
You need to confirm that you downloaded the SQL Server 2022 media from a trusted source and that the file is not damaged.
You can look at the prerequisites for SQL Server 2022.
- Uninstall all the SQL instances one by one. Goto--control panel - uninstall a program - Microsoft SQL server (64 bit) - select remove option, select the particular instance, and uninstall
- Repeat the same process till you uninstall all instances. Goto C:\Program Files\Microsoft SQL Server\MSSQL15.MSSQLSERVER (MSSQLSERVER indicates instances). Should not have any instances like this ex: MSSQL15.MSSQLSERVER.
- Restart the computer and run as administrator choose basic installation process.