I just notice on my windows update that there is a recommendeed updates from microsoft. As I do check its a service pack 1 for windows 7.
In order to get the update. Click on the control panel—system and security—windows update.
Select on the 1 Important Update Link.
The file is a 44MB of size.
If you want to know more about what this service pack 1 does to your current windows ditro. You can check it here.