Hotfix for Windows 7 (32-bit) – IdeaPad Z370, Z470 NameOperating SystemVersionReleasedDownloadHotfixIN1PCH34WW5.exe720 KBWindows 7 32bitKB97825814 Feb 2011DownloadSupported SystemsIdeaPad Z370, Z470Supported Operating SystemsWindows 7 32-bit