Skyrim’s enchanting ability will allow you to give magical powers to your armor and weapons. You need a soul gem to enchant your armor and know about the enchantment.  Once you have a soul gem with a soul in it, you can go to the Arcane Enchanter and bring up the menu by activating the enchanter and selecting the item you want to give magical properties to.   Then, pick the soul gem you want to use (if you have multiple). The size of the gem will determine how much strength your enchantment will give to your armor. And if you can’t enchant the armor, that means your gem is too weak, and you need a stronger one.  Finally, once you have selected all the options, you can start the enchantment. You can also select two enchantments if you have the extra enchant perk.