How to clear your 360's cache

There were many things the recent dashboard update can do, but this is one they didn't tell you about. This will clear the cache, along with any game updates (like the Oblivion patch). Here's how it's done, from GamersReports:

Go to the system blade and then memory. Press Y on either the HDD or a MU and then press X,X,Left Bumper, Right Bumper, X,X. Once you do this a blade will pop up saying: This will perform maintenance on your Xbox 360 storage devices. Do you want to continue? Pick yes or no.

I can't think of how this could harm your system, but you never know, so be aware. If it completely messes everything up, don't blame me.