Could this be the most evil office prank to play on your co-workers?

Everyone loves a good office prank - except of course the victim - and this one could be the best yet!

One of the worst things about working with a computer is that occasionally the machine needs to do an update which can either take a few minutes or a few hours - and the quicker you need it to be done the longer it takes.

Seeing the phrase 'configuring Windows update' is enough to bring a grown adult to tears on a Monday morning and now because of this message, you can become the King or Queen of the office pranksters.

FakeWindowsUpdate.com is the only website you'll need if you're feeling up to mischief.

The website will allow you to choose your operating system and then display the 'update' screen for which ever you choose.

Simply hit F11 to fill the screen, sit back, and watch as one of your colleagues has a mental breakdown.

Obviously we don't recommend you do this to the more sensitive souls in the office - even if it is hillarious.