|Windows 7 64bit||KB2519736||13 Dec 2011||Download|
Hotfix for Lenovo IdeaPad Z575(Windows 7 64bit)
2. Double-click the driver package to extract it to your hard drive.
The default location is C:\Drivers\Hotfix
3. Click Start, select My Computer, and navigate to the location
where the package was extracted in step 2.
4. Double-click each windows update module to start the installation.
5. Follow the instructions on the screen.