Avoid using contractions

wiki/src/doc/encryption_and_privacy/your_data_wont_be_saved_unless_explicitly_asked.mdwn

 [[!meta title="Your data won't be saved unless explicitly asked"]]
 
 As stated in the [[/about]] page, Tails is designed to leave no trace on the
-computer you're using unless you ask it explicitly. It is important
+computer you are using unless you ask it explicitly. It is important
 to understand some of the consequences of that.
 
-Starting a computer on a media containing Tails doesn't change anything on the
+Starting a computer on a media containing Tails does not change anything on the
 operating system actually installed on your hard disk: as a live system, Tails
-doesn't need to use your hard disk during the whole session. Be your hard disk absent
-or damaged, it wouldn't prevent your computer to start Tails. Consequently,
+does not need to use your hard disk during the whole session. Be your hard disk absent
+or damaged, it would not prevent your computer to start Tails. Consequently,
 removing the DVD or USB stick containing Tails is enough to retrieve your usual
 operating system.