Microsoft has released and update which improves the stability and the reliability of Windows 7 and of Windows Server 2008 R2.

Issues that this update fixes:

This update improves the stability and the reliability of Windows 7 and of Windows Server 2008 R2 in various scenarios.

This update resolves the following issues:

- Keyboard function keys or keyboard shortcuts, such as mute or calculator, may not work correctly.
- The notification icon for an application may be moved or lost when the executable application is updated.
- On a computer that is running Windows 7, you configure the Screen Saver Settings to display the logon screen on resume. Additionally, you configure the computer to go to sleep. However, the computer may not go to sleep after the screen saver starts. Instead, a black screen is displayed. This problem causes the operating system to stop responding. You must restart the computer by holding down the power button.

Visit KB977074.

If you have liked this post, you might want to check out some more, on topics like HotFix.