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| Lenovo has confirmed that the preloaded operating system of the following computers (released prior to 22 Oct 2009) can be upgraded from Windows Vista® Service Pack 1 (SP1) to Windows 7. Lenovo computer systems built after 22 Oct 2009 support Windows 7, and therefore may not be listed below. However, depending on hardware and software configuration, your computer may not be upgradeable, even if it is listed below. It is recommended you consider running the Microsoft® Windows® 7 Upgrade Advisor to check compatibility of the system prior to running an upgrade to Windows 7. Refer to the Windows 7 Upgrade Guides for additional information. Desktops l IdeaCentre Series K210, K220, K300, K305, A600, Q110, Q700 l Lenovo 3000 Series H210, H220, H230, C300, C305 Notebook l IdeaPad Y Series Y330, Y430, Y450, Y530, Y550, Y550P, Y650, Y730 l IdeaPad U Series U150, U330, U350, U450, U450P, U550 l IdeaPad S Series S9, S10, S10-2, S12-NV l Lenovo Series E43, G450, G550, K23, B450 l Lenovo 3000 Series G230, G530 G430 20003, 4153 G430 20008, 4152 |