Backup registry Method

You must log on as an administrator to perform these steps. If you do not log on as an administrator, you can only change the settings that apply to your user account. Before you change the registry key or subitem, we recommend that you export this item or subitem or make a backup copy of it. You can save the backup copy to a specified location, such as a folder or removable storage device on the hard disk. If you want to cancel the changes, you can import the backup copy. Click Start, type regedit in the search box, and press Enter to open the Registry Editor. If the system prompts you to enter the administrator password or confirm the password, enter the password or provide confirmation. Locate and click the item or subitem to be backed up. Www.2cto.com, click the File menu, and then click Export ". In the "Save in" box, select the location where you want to save the backup copy, and type the name of the backup file in the "file name" box. Click Save ". This article is from the Microsoft Windows official website.