Windows7 does not recognize dual graphics card BUG

Lenovo IdeaPadU330/U350A series, Zhaoyang K33 series and other notebook dual graphics card failures frequently, due to the design is not a good balance of Win7 environment, making it impossible to switch graphics cards in Win7 environment, this article Will use the method of updating the BIOS to solve the bug that Win 7 does not recognize dual graphics cards.

1, open dual graphics mode, download the required software

Before starting to refresh the BIOS, we need to do some preparation work. First of all, you need to ensure that the dual graphics mode of the notebook has been opened. The specific method is to enter the BIOS and then open the dual graphics mode. Next, download the Win7 graphics card driver provided by Lenovo website and the latest "0FCN67WW" BIOS file. 2, Win7 under the administrator to complete the BIOS refresh process

Download the "0FCN67WW" BIOS file, extract it to a folder. Then select "Run as administrator" in the system. At this point, the system will prompt whether to brush. Click OK to start flashing the BIOS program. After a few minutes, the process of flashing the BIOS will end. Then automatically restart.

3. Use the administrator to view the BIOS version

You need to check whether the BIOS version has been updated. The specific method can be viewed using the administrative command prompt. Click "Start - Programs - Accessories - Command Prompt - Right click - Run as administrator" and enter net useadministrator /active:yes to see if the BIOS version has been updated to the latest. 4. Use Win7's power manager to test whether you can switch dual graphics cards.

After the BIOS version is updated, you need to test whether the switching function is turned on. Enter the system's power management mode, switch the dual graphics mode in the field, if successful, the refresh success problem is fixed. If the switch still cannot be switched normally, check whether the BIOS file version is up to date, whether the refresh process is complete, and whether to enable the dual graphics mode in the BIOS.

Through the BIOS update, we successfully solved the trouble caused by the dual-graphics card of Lenovo notebook, the whole process can be done in less than 10 minutes. In addition to Lenovo notebooks, books of other brand models, if similar problems occur, can also be solved by refreshing the specific BIOS.