The best way is to do an 'image' (a kind of snapshot) of your disk drive and save it to a different drive. There are many software tools to do that... one which works well for Windows and is free is BootitNG. When you need, or go through a disaster, you can override the disk drive with its older image and restore it to what it contained then. This is foolproof compared to Windows System Restore (I do not know much about its Apple equivalent Time Machine so I cannot comment.
Imaging software has been developed for rapid deployment of systems on numerous machines.
You can do this to some extent, but not entirely.
You can help protect from theft by using encryption. There are a number of free programs which can do this for you - Just do a web search for some. One such program is Glary Utilities. Your files may still be stolen, but they will be useless to most people.
The best way, to protect your files, however, is to simply keep them away from the internet. Use them only on a computer which never has or will be connected to the internet.
As for damage, you cannot completely protect from this, but you improve your chances considerably by creating backups. A flashdrive or second harddrive is best for this.
You can also use a cloud backup program, if you want. Some, like DropBox and Box.net offer a small amount of free storage. If you want more that what they give you, you must buy it. IDrive is another good cloud storage service, but there is no free offering. However, cloud storage, although generally encrypted, is still nowhere near as safe from theft as a flashdrive.
My advice: Encrypt with a free program, and store on a backup drive (or two).
backup software
Install anti-virus software.
it protects your computer from virus's
use AVR . it will protect not only your software from being corrupted but also your hardware.
Protect My Identity software can accomplish many things for your computer. Primarily, it is used to protect the information stored in your computer, which helps prevent identity theft and other forms of security breaches.
Anti-virus software.
Install anti-virus software.
anti virus
Exploit is a computer security software. Exploit helps protect a site from being attacked by bugs and glitches. An exploit can take over a computer system, and the software "Exploit" helps protect against that.
Before the creation of anti-virus software, there was no way to protect your computer from viruses.
Their are many viruses.the best thing you can do is have firewall.
To protect your computer from viruses, malwares, and worms that will harm your computer.