How to update Windows7

Updating your computer is a good practice to keep your system running smoothly.With ever growing vulnerabilities in computer networks and applications,Microsoft tries to keep its users safe.
On windows7,you can turn on updates by going into the start menu,control panel,windows update.Click "Check for updates"it will search for available updates to your system.After a while,you could see what updates are available.Click install update.
On Windows 8,press windows+r,type control and you will see control panel.In control panel click Windows update.
You can also change update settings to let update install itself:
Go to Control panel,Windows update,change settings
You can choose to Install updates automatically which will download update in the background and will let you know to restart or you can select "check for updates but let me choose whether to download and install them" with this option you will be able to see what updates are available and which ones you want to download.

When done manually ,you can choose between important and optional update like language pack.

Restart your computer to finish the update.

 

 Windows update error

 Sometimes you can get an error saying updates were not  
 installed.This could be due to outdated version of Windows  
 update agent itself.To update windows update agent,download the  
 latest update agent for your system here:

Windows update agent

Even after installing latest update agent,you can't install update and see error like this,first try to run Windows update troubleshooter by Microsoft.Make sure you are connected to internet and your firewall is not preventing connection to update servers.