How to back up the registry and external hard disk window \ system

How to back up the registry and external hard disk window \ system? Back up the registry you can do it this way:
Start --- Run --- type regedit, open the Registry Editor, select My Computer, so that selected all of the registry, and then select the File menu in the Export command, you can choose to save in the mobile hard disk , so that you can back up your registry the. This is no compression.

As you say window \ system, if you mean a folder within the system, then you can cut the compressed folder to your mobile have a hard disk backup.

But the point is to see you back up the entire system, this software system disk backup click on it. Download a restore wizard to use, the installation will automatically run after the backup of your system disk, later to restore the system very quickly, but due to a software requirements, this backup can not be placed on your hard drive inside.

Compressed file on the premise that you have installed winrar software, so you compress the folder you want to right click you can see the "Add to archive" option, the implementation of this command can be compressed files can then be moved to the Removable Disk