Hi everyone :wave:
I heard that you could use your flash drive to install a new OS, or even your HDD.
Any explanation on how to do that would be great.
Of course you can't do that if you don't have an OS previously installed.The first thing you need to do is re-partition your hard drive exactly the way you want it. Use Partition Wizard Home Edition it is free: http://www.partitionwizard.com/.