Updating softwares on your computer is very useful if you use your computer regularly. It doesnt really matter for small softwares which are not so important but softwares like web browsers, Video Players and Antiviruses are in need of updation. Antiviruses however update themselves so avoid that from the list. Some video formats might not work or some websites might not appear correctly and to solve this try updating your video player or web browser. Some programs like avast antivirus already have an update checker which come with it. To know which programs need updation you need a software. File Hippo updater is one of the best you can get since it is fast and is light sized. Just download it from the given link and install it.
The program usually runs in background but doesnt use much of the system speed but it is recommended to close it when after use. Restore the program from tray and click view results after the update check.
Your web browser will pop and desplay results and update links and just use them to update all you need and keep your pc healthier...