We see problems with WET so I would not use it. It can lose data and reimports Appdata settings which are corruption path into a new install.
Instead sort your files into User folders, then drag each to external HD or flash stick. On the new PC, open each User folder, on Organize tab Select All, drag the group to the corresponding User folder on Explorer bar. Don't release the left click hold until it confirms in hypertext where you are copying them.
To see how to back up other important items look over these steps which would also give you a perfect Clean Reinstall - Factory OEM Windows 7
with out the crippling factory bloatware which interferes with Windows 7.
At the minimum afterwards I would Clean Up Factory Bloatware