1. Disk Clean-up is a computer maintenance utility included in Microsoft Windows.

2. Disk Cleanup is used to clean unnecessary files and optimize system performance.

3. Disk Cleanup is a Microsoft software utility first introduced with Windows 98 and included in all subsequent releases of Windows.

1. The shortcut key to start the slide show from the beginning in MS PowerPoint is F5. Pressing this key will start the presentation and slide show starting from the first slide.

2. If you want to start the slideshow from the current slide, you can use the Shift+F5 key combination. Pressing this key will start the presentation and start the slide show from the current slide.

A new laptop has been designed that weighs less, is smaller and uses less power than previous laptop models. Solid-state hard drive technology has been used to accomplish this.