Fix error

Is important to make a backup of your registry? Yes, it’s important, especially when you update or delete certain records from registry. Making incorrect changes in the registry can break your system. It’s highly advisable to backup the registry before editing any portion of it.
The Windows Registry is a database that stores settings and options for Microsoft Windows operating systems. It contains information and settings for hardware, operating system software, most non-operating system software, and per-user settings.

Follow the next steps to make a backup of your registry entry. The steps are available from registry entry in Windows Vista, Windows 7 and Windows XP.

Make registry backup for Windows Vista and Windows 7

Step 1: Go to Start -> and type systempropertiesprotection in the Start Search box, and then press Enter;
Step 2: Go to System Properties dialog box, on the System Protection tab, click Create;
Step 3: Type a name for the restore point and then click Create;
Step 4: After the restore point has been created successfully, click OK two times;

Restore the registry in Windows 7 and Windows Vista

Step 1: Go to Start -> and type systempropertiesprotection in the Start Search box, and then press Enter;
Step 2: Go to System Properties dialog box, on the System Protection tab, click System Restore;
Step 3: In the System Restore dialog box select Choose a different restore point, and then click Next;
Step 4: Select the restore point that you want to use, and then click Next;
Step 5: Confirm your restore point, and then click Finish System restore restores the selected Windows Vista or Windows 7 configuration and then restarts the computer;
Step 6: Log on to the computer. When the System Restore confirmation page appears, click OK;

Make registry backup in Windows XP

Method 1

Step 1: Go to Start -> Run, type %SystemRoot%\system32\restore\rstrui.exe, and then click OK;
Step 2: On the Welcome to System Restore page, click Create a restore point, and then click Next;
Step 3: On the Create a Restore Point page, type a name for the restore point and then click Create;
Step 4: After the restore point has been created, click Close;

Restore the registry in Windows XP

Step 1: Go to Start -> Run, type %SystemRoot%\System32\Restore\Rstrui.exe, and then click OK;
Step 2: On the Welcome to System Restore page, click Restore my computer to an earlier time (if it is not already selected), and then click Next;
Step 3: On the Select a Restore Point page, click the system checkpoint. In the On this list select the restore point area, click an entry that is named “Guided Help (Registry Backup),” and then click Next. If a System Restore message appears that lists configuration changes that System Restore will make, click OK;
Step 4: On the Confirm Restore Point Selection page, click Next. System Restore restores the previous Windows XP configuration and then restarts the computer;
Step 5: Log on to the computer. When the System Restore confirmation page appears, click OK;

Method 2

This method is preferred if you’re making changes to a specific key/area of the registry.

Step 1: Go to Start -> Run -> type regedit and then press Enter;
Step 2: Locate and then click the key that contains the value that you want to edit;
Step 3: Go to File menu and click Export;
Step 4: In the Save in box, select a location where you want to save the Registration Entries (.reg);
Step 5: In the File name box, type a file name, and then click Save;
Info: To restore this particular key, just double-clicking the .REG file and it automatically merges the contents to the Registry.