SQL Server 2025 : Install2025/12/12

Install SQL Server 2025 with stand-alone installation.

On this example, it is based on that download ISO media for SQL Server 2025 installation like here before installing SQL Server.

[1]

Run PowerShell with Admin Privilege and Install SQL Server from ISO media.

Windows PowerShell
Copyright (C) Microsoft Corporation. All rights reserved.

# mount ISO media
PS C:\Users\Administrator> Mount-DiskImage C:\Users\Administrator\SQLServer2025-x64-ENU.iso 

Attached          : True
BlockSize         : 0
DevicePath        : \\.\CDROM1
FileSize          : 1265686528
ImagePath         : C:\Users\Administrator\SQLServer2025-x64-ENU.iso
LogicalSectorSize : 2048
Number            : 1
Size              : 1265686528
StorageType       : 1
PSComputerName    :

# confirm where drive ISO mounted
PS C:\Users\Administrator> Get-Volume 

DriveLetter FriendlyName  FileSystemType DriveType HealthStatus OperationalStatus SizeRemaining  Size
----------- ------------  -------------- --------- ------------ ----------------- -------------  ----
D                         Unknown        CD-ROM    Healthy      Unknown                     0 B   0 B
                          NTFS           Fixed     Healthy      OK                    104.96 MB ...MB
E           SQLServer2025 Unknown        CD-ROM    Healthy      OK                          0 B ...GB
                          FAT32          Fixed     Healthy      OK                     62.78 MB 96 MB
C                         NTFS           Fixed     Healthy      OK                     62.84 GB ...GB


PS C:\Users\Administrator> cd E:\ 

PS E:\> ls 

    Directory: E:\


Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d-----        10/21/2025   2:32 PM                1033_ENU_LP
d-----        10/21/2025   2:32 PM                redist
d-----        10/21/2025   2:32 PM                resources
d-----        10/21/2025   2:33 PM                x64
--r---        10/21/2025   2:33 PM            314 MediaInfo.xml
--r---        10/21/2025   1:12 PM          96272 SqlSetupBootstrapper.dll
--r---        10/21/2025   1:12 PM             45 autorun.inf
--r---        10/21/2025  11:49 AM        1036360 clang_rt.asan_dynamic-i386.dll
--r---        10/21/2025  11:49 AM         259664 concrt140.dll
--r---        10/21/2025  11:49 AM         450152 msvcp140.dll
--r---        10/21/2025  11:49 AM          33928 msvcp140_1.dll
--r---        10/21/2025  11:49 AM         284240 msvcp140_2.dll
--r---        10/21/2025  11:49 AM          47176 msvcp140_atomic_wait.dll
--r---        10/21/2025  11:49 AM          30800 msvcp140_codecvt_ids.dll
--r---        10/21/2025   1:12 PM          51208 setup.exe
--r---        10/21/2025  12:10 PM            578 setup.exe.config
--r---        10/21/2025  11:49 AM         287880 vccorlib140.dll
--r---        10/21/2025  11:49 AM          90216 vcruntime140.dll
--r---        10/21/2025  11:49 AM          35968 vcruntime140_threads.dll

# run installation
# [/FEATURES=***] : features you'd like to install
#   ⇒ example below specifies Database, Analysis, Integration services and admin tools
# [/ASSYSADMINACCOUNTS=***] : specify admin credential for Analysis Services
#   ⇒ example below specifies local Administrator account
# for other accounts below, those are default accounts (possible change if you need)
PS F:\> .\setup.exe /ACTION=install /IACCEPTSQLSERVERLICENSETERMS /QUIET /FEATURES="SQL,AS,IS,Tools" /INSTANCENAME="MSSQLSERVER" /SQLSVCACCOUNT="NT Service\MSSQLSERVER" /SQLSYSADMINACCOUNTS="Builtin\Administrators" /AGTSVCACCOUNT="NT Service\SQLSERVERAGENT" /ASSVCACCOUNT="NT Service\MSSQLServerOLAPService" /ASSYSADMINACCOUNTS="rx-7\Administrator" /ISSVCAccount="NT Service\MsDtsServer170" 
Microsoft (R) SQL Server 2025 17.00.1000.07
Copyright (c) 2025 Microsoft.  All rights reserved.

SQL Server 2025 transmits information about your installation experience, as well as other usage and performance data, to Microsoft to help improve the product. To learn more about SQL Server 2025 data processing and privacy controls, see the Privacy Statement.

# restart to apply changes
PS F:\> Restart-Computer -Force

SQL Server 2025 : Install (GUI)

[2]	Mount ISO media and move to the drive, then Click [setup.exe].

[3]	Click [Installation] on the left pane and click [New SQL Server stand-alone installation ***] on the top of right pane.

[4]	Select an Edition of SQL Server you'd like to install.

[5]	Read License terms well and check a box [I accept the license terms] to agree with it.

[6]	Select to check important update or not.

[7]	Setup rules indetify potential ploblems. Check the result and improve if ploblems are detected. For the warning of Windows firewall, it's possbile to configure later for SQL Server, so it's OK to proceed.

[8]	If you want to connect to Azure, enter your credentials etc. If you do not want to connect, uncheck everything and proceed to the next step.

[9]	This is the screen for selecting features to install. Select features as needed. In this example, select all features except for [PolyBase Query Service for External Data].

[10]	This is the instance configuration screen. Select [Default Instance] or [Named Instance]. In this example, we will proceed with [Default Instance].

[11]	This is the service account setting screen. Change it as necessary. On this example, we will proceed with the default settings.

[12]

This is the server configuration settings screen. Select the authentication mode. In this example, we will proceed with the default Windows authentication.
Next, click the [Add Current User] or [Add] button at the bottom to specify the SQL Server administrator.
If everything is OK, move on to the [Data Directories] tab at the top of the screen.

[13]	Specify the data directory. Change it if necessary. In this example, we will leave it as the default and proceed to the next step. If everything is OK, move to the [TempDB] tab at the top of the screen.

[14]	These are TempDB settings. Change them as necessary. In this example, we will proceed with the default settings. If everything is OK, move to the [MaxDOP] tab at the top of the screen.

[15]	Specify the maximum number of cores the instance can use. In this example, we will leave it as default and proceed to the next step. If everything is OK, move to the [Memory] tab at the top of the screen.

[16]	Specify the range of memory capacity that the instance can use. In this example, we will proceed to the next step with the default settings. If everything is OK, move to the [FILESTREAM] tab at the top of the screen.

[17]

This is the FILESTREAM feature setting. If you want to enable it, set it. In this example, we will leave it disabled by default and proceed to the next step.
The FILESTREAM feature allows you to manage unstructured data such as documents and images on the file system in tables.
You can change the setting even after installation.
If everything is OK, click [Next] to proceed.

[18]	These are the Analysys Services settings. Select as needed. Furthermore, click the [Add current user] or [Add] button below to specify the Analysys Services administrator. If everything is OK, proceed to the next step.

[19]	This is the configuration setting (worker node) for Integration Services Scale out. Change it as needed. On this example, we will leave it as default and proceed to the next step.

[20]	This is the installation preparation screen. Check it one last time, and if everything is OK, click the [Install] button to proceed.

[21]	The installation will proceed.

[22]	Once the installation is complete, click the [Close] button to exit and restart the system. This completes the installation of SQL Server.

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