The number of users using Windows 7 system is also increasing. Of course, everyone will encounter various problems in the process of using win7. A common problem with Win7 is that the system prompts that the DVD drive cannot be found. The DVD drive is not recognized by the system. In the device manager, it is just an exclamation mark. The data signature has a problem: "Windows
cannot verify the data of this device. Signature ……(Code52)” To completely solve the win7 system prompts the DVD driver can not find the problem that the DVD drive is not recognized by Windows 7, refer to the deep Windows 7 Ultimate version of ghost xp sp3 to download the following methods. Solve the win7 system prompts the DVD driver can not find an alternative method: 1. Enter regedit in the start menu, press Enter. Open the Registry Editor 2. Expand the following registration key HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass{4D36E965-E3
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