Wow ur a n00b
You can download a movie and save it in your videos folder.
In the same way you do when you download movie on your hard drive. Save or Save as... choose folder on your flash drive, press OK.
LimeWire is never "full." The music files you download are stored on your hard drive, usually in your Shared folder. Thus, the only limit to the number of songs you can download is the capacity of your hard drive.
To create a folder on an external hard drive double click on the hard drive's icon and select New Folder from the Finder's File menu.
In the Applications folder is a folder called Utilities. In the Utilities folder is Disk Utility. Disk Utility will Erase / Partition / Format a hard drive.
Your computer is set up to use drive C as a primary, assuming this is where the Windows folder is located. To save files on another hard drive, click on download and change the download destination, or you can save it to C then move it later.
You can create a shared folder on your hard drive and copy all data from the pen drive in the folder. Or you can share your pin drive right click on the drive (or folder) Security and sharing...
Data is stored in the temporary internet folder once the site is opened - having an anti-virus program is essential!
You do need a hard drive to download expansions, but the system won't turn on if you don't have a hard drive, so if you can turn it on without problems, and can play games then you definitely have a hard drive and you are able to download expansions.
download it to your hard drive, then drag and drop onto the flash drive
Kakasoft Advanced Folder Encryption has a function that helps you to hide a entire hard drive. If you need it, you can visit their site: http://www.kakasoft.com/folder-encryption/how-to-encrypt-files.html
Locate your Minecraft folder, then find your save file. Copy and paste this onto your hard drive. Minecraft is installed in your AppData folder (C:\Users\[username]\AppData\.minecraft\) The saves folder should be in the .minecraft folder.