In the above given figure (1), we see that the length of two sides `P' and `Q' when added then. it is less than the length of `R' because it violates the definition of triangle inequalities. A triangle is having equal sides, and the angle that is different to these sides is also same.
To enable Windows Update. Click Start, point to All Programs, and then click Windows Update. Click Change settings. In the Important updates section, select a mode of update that enables Windows Update (any selection other than Never Check for Updates), and then click OK. Click Start, and then click Run.
Windows Update and Microsoft Update can keep Windows, Office, Internet Explorer, and other Microsoft apps up-to-date.Updating Windows. Open Windows Update in the Control Panel. Click Change settings, and set the drop-down menu to Install updates automatically. If you don't have Microsoft Update installed, only Windows updates will download automatically. If you have other Microsoft apps installed (anything from Silverlight to Office) you'll need Microsoft Update. To pick it up, click the Click here for details link at the bottom of the Windows Update window.