no
If you are going to format the drive first then there are two possibilities: 1. You have all system and personal files on one drive. In this case you would lose all your files. 2. You have system files and personal files on different drives. In this case you would only lose the files on the drives that you format. As long as you don't format the drive with your personal files on it you won't lose them.
No, all your saves will stay.
libraries
There are no motion or animated files saved under .jpg. All animated images are saved under .gif
No.
There are no motion or animated files saved under .jpg. All animated images are saved under .gif
Using the shutdown feature properly closes all programs and files that are currently in use. If you just cut the power to the computer all of a sudden, those files that were in use at the time could lose data by not being saved, (shutdown) properly!!!
You can have the saved games files from internet.Then you can cut and paste all the data in user files folder to other folder for backup.Then paste the downloaded file in the user files folder.
Yes but you will lose all the jailbreak features.
No. All of your media should remain untouched. You might need to lose some things if you don't have enough space on your device to download the update.
Not all the time.