Backing up Windows and browser profiles when system is in good state is always handy since if one bad your system goes corrupt or case like hard disk crash ,when rebuilding the machine you can restore the same.

Well in Windows 7 you have the traditional option of Windows Backup or you have to do manual copy each files, Auslogics BitReplica is a freeware application which will copy Windows 7 profile and backup browser profile too and this same application you can use to restore all your files after you build a new machine.

How Auslogics BitReplica works:

Installing application: After you have downloaded the application, install the application by double clicking the same.
Creating a backup: A backup profile stores the settings you specify for the backup operation (such as what, where, how and when to back up). You can create several backup profiles (for instance, one profile for automatically backing up your emails once a day, and another profile for making a full backup of all your personal files and data manually on your own schedule).
Customize: When creating a profile, you will be able to specify the items to be backed up as a category (such as “Windows mail contacts”) or by selecting specific files and folders on your hard drive. You can also set the location to save your backup to, the algorithm for copying files (whether to copy only the files that have changed since the last backup, etc.), the backup schedule (launch it manually or have it run automatically once every hour, day or week), select some advanced settings and choose a name for your profile that will help you easily recognize it in the list.
Backing up: Select the backup profile you created from the profiles list and click on the run PLAY button. This will create a backup using the settings specified in the selected profile.
Restoration: To restore files from a backup, you simply select it in the list of backups created under a specific profile and click Restore. You can also explore the folder where the backup was saved and select individual files from it instead of restoring the whole folder.