Question: what is the difference between windows 7 service pack 1 and 2?
Answer: Replies (3)  Service Pack 1. Windows 7 Service Pack 1, there is only one, contains Security and Performance updates to protect your operating system. ... SP1 for Windows 7 and for Windows Server 2008 R2 is a recommended collection of updates and improvements to Windows that are combined into a single installable update.