Disk fragmentation occurs when you modify, move or delete files. When you make the modification, the changes are actually saved in a different spot in your hard drive instead of directly where the file is sitting. Over time, your computer is acting like an octopus, with its arms stretched in all directions to the find the changes you made. De-fragmentation helps reunite those stray bits of information back to one location so your computer doesn't have to expend unnecessary energy.
Whenever you visit a website with the intent to purchase an item or service through the interface, you always want to make sure the page you are entering your private information is a secured page. Pages that accept sensitive information such as credit card numbers, social security numbers, or anything else that is vital information should have an SSL active for those pages (the https:// and that little padlock). This is the protection provided to help scramble your information from anyone trying to steal it (so instead of seeing 'A' a thief would see 'nTughEdjf' or something along those lines). Visiting a wesite with a misconfigured or fake SSL will normally produce a warning from the internet browser letting you know it's fake.
This is a free virus scan provided by Bitdefender. It comes in the form of an addon/extension in your browser and lets you know if anything is currently on your computer.
Instructions coming soon...