Why is it so important to do the update?
Because programs are not perfect and even less operating systems, which inevitably have bugs, these bugs can be fixed by updates, you can also find security holes course solved all the updates.
And last but not least there are new versions of programs like Windows Media Player or Internet Explorer, can benefit from them just checking every 1 week (this range is indicative) if there are updates.

NOTE: If you have genuine Windows the update is not recommanded!

Windows – How do we update?

•  Control Panel -> System and Security

•  Click on Windows Update

• Here you have a button to check for updates manually check for updates and install them, or you can use the left menu to view history updates and answers to frequently asked questions about Windows update.

•  Options on the left is change settings -> from here we can set the updates to be made automatically at a certain time and at a certain time. Below is an example:

If your system is up to date with all programs should receive the following message:

After making updates to the system might ask you to restart Windows for acceste updates to take effect.