Installation of Oracle database 12c Release 2 on the Windows :
*** Download Oracle Database 12c Rel 2 software from oracle.com:
Step 1: Click the setup.exe for start installation

Step 2 : After checking the prerequisites, it popup the first screen of configure and security updates, We can ignore by Remove the tick from a check box. then click next and popup the uninformed screen, click yes.


Step 3 : Installation option
Select the install database software only option, then click next

Step 4: Database installation option
Select the single instance database installation option, then click next

Step 5: Database Edition option
Select the Enterprise Edition for full features, Click Next

Step 6: Specify Oracle Home User
Use Windows Built-in Account or specify a standard Windows User Account (not an Administrator account) to install and configure the Oracle Home. This account is used for running the Windows services for the Oracle Home. Do not log in using this account to perform administrative tasks.
- Use Virtual Account
The account is the Oracle Home User for Oracle Database Single Instance installation. The account allows you to install Oracle Database, create, and manage database services without passwords.
- Use Existing Windows User
The account can be a Windows Local User, a Windows Domain User or a Windows Managed Services Account (MSA). You must provide a user name and password for a Windows Local or Domain User. For the MSA account, which is a managed domain account, you only need to provide the user name.
For an Oracle RAC Database or an Oracle Grid Infrastructure installation, you can only use a Windows Domain User Account.
- Create New Windows User
Provide the user name and password for the Windows Local User that you want Oracle Universal Installer to create. Confirm the password. The new user that is created is denied interactive logon privileges to the Windows computer. However, a Windows administrator can manage this account like other Windows accounts.
- Use Windows Built-in Account
No user name or password is required. Oracle creates Windows Services using Windows Built-in Accounts (LocalSystem or LocalService).
For Database Server installations, Oracle recommends that you use a standard Windows User Account (instead of a Windows Built-in Account) as the Oracle Home User for enhanced security.
As per Oracle Recommendation, I am going with the Virtual Account option, Click Next

Step 7 : Specify the Installation Location
Note: Ensure that the Oracle home path for the database home and the Oracle base path use only ASCII characters. At the time of this release, the use of non-ASCII characters for a Oracle database home or Oracle base is not supported.
Oracle Base – The Oracle base directory is a top-level directory for Oracle software installations owned by an Oracle installation owner account.
On Microsoft Windows systems:
The default Oracle base path is DRIVE_LETTER:\app\user.
You can change the path based on your requirements.
Software Location – In the Software Location field, accept the default values or enter the Oracle home directory path in which you want to install Oracle software. The directory path should not contain spaces
Specify Oracle Base, Software Location, and click Next.

Step 8 : Performing Prerequisite Check

Step 9 : Summary of Installation
Before starting the installation, We can edit the Path, Oracle user account and Oracle Edition.

Step 10: Start the installation and monitoring its progress by click Details


Note: On the 89% saving inventory will take some time to process.
Step 11 : Final completion screen

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