Here is how you can reset your WinBook DVR (models: D60, D70 or D04) back to default:1. Right click on anywhere in the screen to open the drop down menu, then click on Main Menu. 2. Once on the login screen click on the password field to enter the password. 3. Enter the default password 123456 (or the one you set) then press OK to view the Main Menu. 4. Click on Maintain when on the Main Menu. 5. Click on Default. 6. From here you can select which parts of the DVR you want to reset back to default. If you want to reset all of the settings back to default click Select All then click App.