Resolving the 0x84B20001 Error During SQL Server 2012 Installation

To effectively manage the error code 0x84B20001 during the installation of SQL Server 2012, follow these structured steps:

1. Assess system specifications: Confirm that your PC adheres to the essential criteria for SQL Server 2012, including system type, processor specifications, memory allocation, and disk capacity.
2. Neutralize antivirus interference: Temporarily deactivate any antivirus solutions as they can impede the installation process of SQL Server 2012.
3. Initiate setup with elevated privileges: For adequate installation permissions, right-click the SQL Server setup file and select 'Run as administrator'.
4. Evaluate the integrity of installation sources: If using physical media like a DVD or USB, verify its condition. Alternatively, relocate the setup files to a secondary drive and attempt reinstallation.
5. Analyze the installation log details: Investigate the log files found in the %ProgramFiles%\Microsoft SQL ServerH\Setup Bootstrap\Log folder to pinpoint specific issues.
6. Remove older SQL Server installations: Clear any previous SQL Server installations from your system to prevent setup conflicts.
7. Apply system updates: Confirm that the latest service packs and updates are installed on your operating system to facilitate a smooth installation process.