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So what’s wrong with the WET approach? For one, it doesn’t save all your

files, only those in standard locations (like the Documents, Music, and Pic-

tures folders) plus the ones you explicitly check off. Miss something and you

might lose it. WET also doesn’t save registry settings for your installed appli-

cations (e.g., settings, toolbars) or any of your custom file types (see Chap-

ter 3). Don’t be surprised if you lose your file encryption (Chapter 8) and

shadow copies (Chapter 6). WET also doesn’t transfer installed applications,

but even if it did, you’d have to reinstall them anyway.

To move registry data (including file types) from your old

Windows to the new one, use registry patches, as described

in Chapter 3.

Another problem with WET is that it requires that you move all the data you

want to keep—which might be sizable—to another medium. Say you’ve got

675 GB of home movies and photos, another 60 GB of music, and 12 GB of

business documents. You’ll have to wait while WET tries to compress and

consolidate all 747 GB of data, and then try to find a place to put the resulting

746 GB file. Don’t have a 750 GB drive handy, and don’t want to go buy one

just for 3 hours use? Or maybe you just don’t feel comfortable relying on a

single piece of hardware and a potentially buggy program to safeguard your

data?

But the biggest problem with WET is that it is largely unnecessary. Instead,

why not do some Drive Reorganizing Yourself, or DRY? By going DRY, you

simply take charge of migrating your own data so you can be sure that you’ve

got everything and that it all ends up where you want it.

Whether you do a WET or DRY upgrade to Windows 7, it’s

an awfully good idea to back up your entire hard disk first.

That way, if there’s some catastrophic problem with the

upgrade—or you decide this PC isn’t ready for Windows 7—

you can restore the previous Windows installation and all

your data in one step. But make sure your backup software is

compatible with Windows 7, or you may not be able to get at

any of your files.

If you’re upgrading from Vista (Business edition or better),

you can use the Complete PC Backup and Restore feature in

Control Panel to image the hard disk, allowing a full restore

to the pre-upgrade state, or quick restore of individual files

from within Windows 7 (see Chapter 6). Other editions and

versions may require third-party backup software.

22 | Chapter 1: Get Started with Windows 7

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