
Updating  softwares is necessary for a PC because these days the  software  developers are releasing their software updates quite  frequently and  when it comes to browsers it is even frequent, Google  releases weekly  updates for its browser, Chrome (in developer channel).  If you have  installed heaps of softwares on your PC then it will be  hectic task to  update them. Instead of updating each software manually,  you can try  Update checkers; An Update checker is a simple piece of  software which  checks updates for the softwares installed on your PC;  it saves you a  lot of time.
How it Works?
Update  checkers generally have a database of latest softwares, so  when you run  an Update checker it checks the version of the software  installed on  your PC and the latest software version available in its  database.
If  your firewall blocks these Update checkers, then add them to the   exceptions list because they need to access internet in order to update   your softwares. Here are some of the best Update checkers –
FileHippo Update Checker
FileHippo  is one the best software hosting websites. Its software detection rate   makes it the best Update Checker. It is portable enough. When I scanned   my system, it showed me 16 updates of which 3 were Beta updates. As   FileHippo doesn’t host commercial/shareware softwares, you won’t be able   to see updates for paid softwares installed on your system.
Download Link: 
FileHippo Update Checker