SQL Server 2008 SP3 x86 Complete setup

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Overview
Microsoft SQL Server 2008 Service Pack 3 (SP3) is now available for download. While keeping product changes contained, we have made significant investments to ease deployment and management of Service Packs. A few key enhancements for customers in Microsoft SQL Server 2008 Service Pack 3 are :

Enhanced upgrade experience from previous versions of SQL Server to SQL Server 2008 SP3. In addition, we have increased the performance & reliability of the setup experience.
In SQL Server Integration Services logs will now show the total number of rows sent in Data Flows.
Enhanced warning messages when creating the maintenance plan if the Shrink Database option is enabled.
Resolving database issue with transparent data encryption enabled and making it available even if certificate is dropped.
Optimized query outcomes when indexed Spatial Data Type column is referenced by DTA (Database Tuning Advisor).
Superior user experience with Sequence Functions (e.g Row_Numbers()) in a Parallel execution plan.

Microsoft SQL Server 2008 Service Pack 2 is not a prerequisite for installing SQL Server 2008 Service Pack3. These packages may be used to upgrade any of the following editions of SQL Server 2008:
Enterprise
Standard
Evaluation
Developer
Workgroup

SQL Server 2008 SP3 contains the cumulative updates of SQL Server 2008 SP2 cumulative update package 1 to 4, and fixes to issues that have been reported through our customer feedback platforms. These include supportability enhancements and issues that have been reported through Windows Error Reporting.

System requirements
Supported Operating Systems: Windows 7, Windows Server 2003, Windows Server 2008, Windows Server 2008 R2, Windows Vista

Windows 7; Windows8, Windows Server 2003 Service Pack 2 and R2;Windows Server 2008 Service Pack 1 and Service Pack 2;Windows Server 2008 R2;Windows Vista Service Pack 1 and Service Pack2;Windows XP Service Pack 3
32-bit systems (x86)
PC with Intel or compatible Pentium III 600 MHz or higher processor (1 GHz or faster recommended)
64-bit systems (x64, ia64)
1GHz or faster processor
Minimum of 512 MB of RAM (1 GB or more recommended)
675 MB of available hard disk space