Windows 7 and Windows Server 2008 R2 Service Pack 1 includes all previously released updates for both operating systems. Many of these updates are available to the public on the Microsoft Download Center and Windows Update, while others are only available to specific customers.
As the Service Pack 1 (SP1) contains all these updates, it’s a recommend download for every Windows 7 and Windows Sever 2008 R2 PC.
If you are curious to know more about the hotfixes and security updates included in Windows 7 SP1, you can download Hotfixes and Security Updates included in Windows 7 and Windows Server 2008 R2 Service Pack 1 document.
And, if you haven’t already installed SP1, please refer to our how to update Windows 7 to Windows 7 SP1 guide or manually download the SP1 installer.
You might also like to slipstream Windows 7 Service Pack 1 into installation DVD or ISO.
Download Hotfixes and Security Updates Included In Windows 7 SP1 Document