This article will show you how to auto-delete recordings on the WinBook DH5008DH DVR.Here is how to do this:1. Right click on the preview screen and select Main Menu. 2. Select the admin username, enter the password and click OK. The default password for the account is 123456 if you have not previously changed it. NOTE: This prompt may not show if you are already logged in. Proceed to the next step once logged in. 3. Click on Maintain. 4. Click Auto Maintain. 5. Click on the drop down under Auto-Delete Old Files and select Custom. 6. Input how many days to auto delete recordings and click OK. 7. Click back to the Main Menu and click on Configuration. 8. Click on System. 9. In the HDD Full drop down select Overwrite and click OK. This will delete the oldest recordings to make room for new ones when the hard disk drive gets full.