Threat of spyware and adware is one of the reasons why you should make a backup copy of the data and files on your computer (mp3, photos, documents, etc.). Some malware programs can imbed itself into the operating system. Although there are programs to deliver malware such as Spybot and HijackThis, but at times, in some cases, you still need to reinstall the entire operating system.
Reinstalling the operating system may cause a risk of your computer can not boot normally. If this happens, usually the last option is to how to format your computer and create a new system. Without a copy (backup), all your data will be lost.
It is therefore very important for you to make backups of important files. In the event of unwanted things, you just need to restore data that has been dibackup above the bed.