BlueLife KeyFreeze lets you lock keyboard and mouse. Microsoft makes it possible to lock Windows by pressing Win+L, but it takes the user out of the OS.

One way to lock a Windows computer from your keyboard is by pressing Ctrl + Alt + Del and then selecting the "Lock" option.

Get more work done in less time by taking advantage of Windows 7's handy key combinations for managing open windows, launching applications, and navigating in Windows Explorer.

Now that you’ve had a chance to install the Windows 7 Release Candidate and spend a few weeks exploring the OS, it’s time to get serious and learn some keyboard shortcuts. Windows 7 adds some ...