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Before downloading and installing SP1 for Windows 7, you need to check if it is already installed or not. In this article, I will be showing you two methods to verify if SP1 is installed or not. To check if Windows 7 SP1 is already installed, follow the below steps:
Click the Start button , right-click Computer, and then click Properties.
The basic information about your computer page will open
If Service Pack 1 is listed under Windows edition, SP1 would be already installed on your computer.
For example, in the below snapshot, you can see that Windows 7 SP1 is not installed, as the Windows edition is only Windows 7 Ultimate
After Windows 7 SP1 is installed, it will be displayed as :
You can also know if SP1 is installed by using winver
Click the Start button , and inside the Search programs and files textbox, type winver and then click on winver.exe
The About Windows page will open.
The below snapshot is for a Windows 7 without SP1
whereas this one is for Windows 7 with SP1, as you can see its now Build 7601
In this article I have shown you two different methods to check if SP1 for Windows 7 is already installed or your system or not. Doing so, will make you decide whether SP1 for Windows 7 is required or not.