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How do I backup my computer?

There are three steps to developing a good backup plan

1. Know what to backup

There are several folders that are common repositories for files. The most common we'll list here:

Folder/Data	Windows XP Location	Windows Vista and 7 Location
My Documents *	C:\Documents And Settings\User Name\My Documents	C:\Users\User Name\Documents
Favorites for Internet Explorer	C:\Documents And Settings\User Name\Favorites	C:\Users\User Name\Favorites
Videos *	*	C:\Users\User Name\Videos
Music *	*	C:\Users\User Name\Music
Pictures *	*	C:\Users\User Name\Pictures
Desktop	C:\Documents And Settings\User Name\Desktop	C:\Users\User Name\Desktop
Outlook Data	C:\Documents And Settings\User Name\Local Settings\Application Data\Microsoft\Outlook	C:\Users\User Name\AppData\Microsoft\Outlook
Outlook Signatures	C:\Documents And Settings\User Name\Application Data\Microsoft\Signatures	C:\Users\User Name\AppData\Roaming\Microsoft\Signatures
Outlook Express E-Mail **	C:\Documents And Settings\User Name\Local Settings\Application Data\Identities	C:\Users\User Name\AppData\Local\Microsoft\Windows Mail
Outlook Express Addresses **	C:\Documents And Settings\User Name\Application Data\Microsoft\Address Book	C:\Users\User Name\Contacts
Mozilla Bookmarks	C:\Documents And Settings\User Name\Application Data\Mozilla\Firefox\Profiles\profile name\bookmarks.html	C:\Users\User Name\AppData\Mozilla\Firefox\Profiles\profile name\bookmarks.html

* Contains Pictures, Music and Videos in XP, separated out in Vista

** Renamed Windows Mail in Microsoft Vista

2. Have a good tool to backup.

While there are many ways to backup there are several vital traits in a good backup program.

• Straight copy : This means the backup is a literal copy of the original. While "one file" backup systems offer advantages by compressing data, the benefits of having minimal effort to recover is far more important than the couple of dollars you'll save by buying a smaller backup device. Rest assured that when your computer's hard drive crashes, (and it will crash), you will be thankful not to have to find and install the special software needed for these compressed, or custom copy systems.
• External hard drive : While many users have a small enough collection of data to fit onto a USB Memory stick, it is inevitable that your data will expand, always at the most inconvenient time, and you will need more hard drive space. Don't go second rate on what may be your most important backup decision. Buy an external drive. External laptop hard drives are my favorite, because they're very portable and many are much bigger than you will ever need.
• Versioning : While not the most important of features, versioning protects you against two additional types of data loss. First, it protects you against modifications you may have made, which you later regret. It allows you to revert to a version from a previous day. Second, and much more importantly, it protects you against corruption. The worst possible, and frighteningly common scenario is to discover your critical document, database, or photo is corrupted, the moment after the backup just finished running. Versioning keeps old copies around for a limited time to ensure risks of corruption are minimized.
• Avoid free bundled software : There may be excellent free backup software out there that comes with the external hard drives on the market. With the half a dozen or so that we tested we found that they were buggy, and prone to failing out of the box. Use a well tested and reliable product like Syncback SE.

For a walkthrough of setting up Syncback, read our Syncback backup tutorial

3. Perform REAL tests of your backups by recovering data

If you followed step 2 this will be quite easy. First, browse through to a frequently accessed location on the backup, such as your My Documents folder. Then, find a file that you changed recently and open it up. If you didn't follow step 2 then be prepared to discover why most people ignore the single most important step in backups. Recovering files with a custom system can be arduous at best. Never, ever, ever trust logs. I've watched many people in shock at the discovery that they lost all their data. They could not believe it because: "the logs said my data was backing up just fine". If you can't see it with your own eyes, it's not happening. No exceptions.

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