Sometimes computer users encounter situations in which you might want to edit the registry. However, if you accidentally delete some necessary key, it can cause failures in the system. So just in case you need registry backup. from which you can restore the system registry intact.

Manual editing of the registry may need. for example, if you need to remove some program with all the settings (even when you uninstall through "Add or Remove Programs" some programs leave unwanted "tails" in the registry and service folders). Sometimes, editing the registry is required to change a number of system settings.

However, if you do not understand what registry and how it works, you could accidentally edit or delete the wrong thing. As a result of system malfunctions occur and conflicts that are hard to fix — in some cases, have even completely reinstalled the operating system. To avoid this, you will help registry backup. if you do something wrong when editing the registry, you can restore the original registry settings from it.

So how is a copy of the registry? It's very simple. First you need to launch the registry editor. Click Start, select Run from the menu. In the window that opens, type regedit and press OK / Enter. The Registry Editor window opens.

In the top menu select "File" and from the opened submenu select "Export". A window will open export registry file. You need to select the folder in which you saved the copy of the registry (by default the folder "My documents"). Make sure that the local disk where you will save the copy of the registry enough space. because the copy size can be several hundred megabytes.

In the line "file Name" enter the name of the copy (if you keep several backup copies of the registry, the better the title to mention the date on which was made the copy of registry, so as not to confuse). And in the "export Range" select "Whole registry". Then click "Save".

Create a copy of the registry may take some time. The earlier the system was installed and the more the registry "grew", the longer you have to wait. If during the process of creating a copy the registry editor "hangs", do not hurry to close it and "kill" the process through the task manager, just wait.

How to restore the registry from a saved backup?  There are two ways. The first one is very simple. Just double-click on the backup file. The system will ask you for confirmation of entering information from the file into the registry, and click "Yes".

The second method is slightly more complicated. You need to go to the registry editor, select the top menu item "File" and then instead of selecting "Export" select "Import". Window opens the import registry file, locate the folder where you saved the copy of the registry, click on the registry file with the left mouse button and click "Open". Import information from the registry file will take some time .

During a restore registry from the backup it is advisable to close all open programs  (even those that are in the tray and seem to be inactive), because the Registry Editor will not be able to import the keys associated with these programs, since they are currently in use.

Before you manually make any changes to the registry or put unknown program, you need to make a backup of the registry. A copy of the register  - this is a guarantee that with possible failures you will be able to return everything "as it was."