It uses Hard Drive
Hard drive cleaner software programs are available at online stores that sell computers or directly from the computer's manufacturer. PCWorld and Microsoft have drive cleaner programs that can be downloaded.
That would be the defragger.
When you add software or programs to your computer, it will have less free space available than previously. Your hard drive has a fixed capacity, and you should always leave some free space available. As you add data, you should defragment the drive from time to time.
If there is sufficient space in the USB drive, it is possible to create a bootable USB from the original downloaded .iso image.
No. They will stay on the hard drive.
The data hard drive or just hard drive is where all your programs are stored when your computer is shut down. Every progam you see on your computer is stored on the hard drive. That's why the bigger the hard drive the more programs you can put on your computer.
Memory typically means RAM, I think you mean hard drive space. You can free used space on your hard dive by uninstalling the programs you don't use and by running programs like Ccleaner to delete temporary files.
The DLC is saved to your hard drive, but only the account you downloaded the DLC with can access it from the hard drive.
Nope - uninstalling programs recovers space on your hard-drive. The only way to 'lose' RAM is if one of your memory chips fails - in which case, windows would report the error, as it would be expecting more RAM to be available.
If a hard drive is constantly spinning, there is likely too many background programs running. Remove or restrict the programs to slow down the hard drive.
Drive space usage is how much memory used from the total hard drive space. It's basically how many stuff you put into a hard drive compartment.
All computers use a hard drive to store programs and files.