How to update windows 8.0 to 8.1 ??

hey guys today i will talk about how to update the Windows version in Nokia lumia series ..
so we all or some might not know that the new version of the Windows operating system for the mobile are already released and everyone are talking about so if you want to know its new feature like read my previous article know about windows 8.1 
so in order to update the Windows  version there are some criteria that should be followed like,

1. A proper WiFi connection 
2. More than 800 MB (megabytes ) of free storage capacity in device storage,
3. and your attention.

now so get your windows phone and connect with a good Wifi network and continue the following steps.

1. first go to setting and check whether the wifi is working properly or not .
2. then go to Phone update option in setting.
3. then you can see "check for updates " so select it and wait for a while.
4. there you can see " a new updates are available " 
5. then so when the updates are downloaded they will ask you to install them then select "OK"

points to remember !!!

1. make sure that you got a full battery life .
2. before continuing the installment make sure you backed up all the important files.
3. so don't worry about the apps as when the new version is updated the apps will be in your suggestion list so you shouldn't have to search it again,
4. make sure you got a good or strong network connection!

so that's all and hope you can get properly and if you are not able to do then comment below your problems then i am always ready to help you !!!!!