After the reinstallation of operating system, Slidebar, DolbyButton, OneKey Theater does not work.
The above symptom may occur on the following systems:
IdeaPad Y550, Y650
Under the following operating system:
Microsoft Windows 7
To avoid or solve the above symptom, you need to i nstall the drivers below in the following order:
1. HotKey driver
3. Slidebar driver
4. Audio driver
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