Win7 system can not read the CD when burning, please insert the CD problem solution

Win7 users sometimes want to burn their own system to the CD to save and save, but after inserting the CD into the computer, I found that the computer can not find the CD, always Please insert the disc. How to solve this problem? Now Xiaobian teaches everyone a solution. Specific steps: 1. First open the device manager, then find the DVD device class, right click and select “Uninstall” option; 2. In the pop-up confirmation device uninstall window, select ““OK” button; 3 After the uninstallation is completed, click the “Operation--Scan to detect hardware driver” option at the top of the window; 4. After the scan is completed, the installation information will be displayed in the lower right corner; 5. After waiting for the automatic installation of the device, it can be opened normally. CD-ROM and view the contents of the disc. If you want to back up your system to a disc, but always insert the disc after inserting the disc. Then, follow the steps above to solve the problem.