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.
Open the Windows Update utility. Windows Update can automatically handle most of your driver updates for you. There are several ways to open Windows Update: Any version of Windows - Open the Control Panel, select Large icons or Small icons, and then open the Windows Update option.