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Innovate how to use x7 sound card.
1. First, unzip and install the downloaded compressed package.

2. Second, restart. Press F8 to restart win7 8 by disabling the driver and forcing the signature. Press Shift to restart.

3. Then, after restarting, enter C: \ drivers \ win \ Dolby to find the DTPC.msi corresponding to the 32-bit or 64-bit system (other msi is not necessarily) and run it.

4. After Dolby is installed, restart it again. After the restart, Dolby can take over the previous driver.