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This document describes the steps for installing the Microsoft(R) Windows(R) 8.1 operating system and updating the system BIOS and drivers on supported ThinkPad(R) and Lenovo(R) B, E, K, M, and V series notebook computers. This document also contains hints, tips, and limitations found during testing of Windows 8.1 on the ThinkPad and Lenovo B, E, K, M, and V series notebook computers specified in this document. In some cases, this document will suggest that you take steps prior to installing or updating to Windows 8.1. Therefore, it is recommended that you read the entire document before installing Windows 8.1, and follow the instructions provided.
Lenovo provides the drivers, information, and any related documentation or services "AS IS," without warranties of any kind, express or implied, including THE IMPLIED WARRANTIES OF MERCHANTABILITY, NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE. SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF EXPRESS OR IMPLIED WARRANTIES, SO THE ABOVE EXCLUSION OR LIMITATION MAY NOT APPLY TO YOU. IN THAT EVENT, SUCH WARRANTIES ARE LIMITED IN DURATION AND SCOPE TO THE GREATEST EXTENT ALLOWED BY LAW. Lenovo's warranties, if any, for newly purchased Lenovo hardware products are as stated in the applicable Lenovo Limited Warranty, and for Lenovo licensed programs are as stated in the applicable Lenovo Program License Agreement. This document may include technical inaccuracies and omissions, or typographical errors.
Note: IN NO EVENT WILL LENOVO BE LIABLE FOR ANY LOSS OF OR DAMAGE TO YOUR DATA, LOST PROFITS, LOST SAVINGS, THIRD PARTY DAMAGES, INCIDENTAL DAMAGES OR OTHER ECONOMIC CONSEQUENTIAL DAMAGES, EVEN IF LENOVO HAS BEEN ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES.
Refer to the "What are the system requirements for Windows 8.1 Preview" section from the Microsoft Windows 8.1 system requirements Web page: Windows 8.1 Preview: FAQ.
Lenovo has tested and confirmed that the operating system of the following ThinkPad and Lenovo B, E, K, M, and V series notebook computers can be updated from Windows 8 to Windows 8.1. However, depending on hardware and software configuration, your computer might not be updatable, even if it is listed below. Refer to the following sections for details.
B475e, B480, B480e, B575e, B580, B580e, B590, E49, K29, K49, K4350, M490, M490s, M495, V480, V480c, V480s, V490u, V580, V580c, V580u
E130, E135, E145, E330, E335, E430, E431, E435, E440, E445, E530, E531, E535, E540, E545, L330, S430
L430, L440, L530, L540
S3-S431, S3-S440, S5-S531, S5-S540
T430, T430i, T430s, T430si, T430u, T431s, T440, T440p, T440s, T530, T530i,T540
X1 Carbon, X131e, X140e, X230, X230i, X230s, X230 Tablet, X230i Tablet, X240
Helix, Tablet 2, Twist
While updating your computer operating system to Windows 8.1, Windows 8.1 setup program will scan your computer to check if your computer is ready for Windows 8.1. By viewing the results of the scan operation, you can review issues that might prevent you from updating to Windows 8.1.
For more information about updating your Lenovo computer, refer to the document Updating to Windows 8 from Windows 8 on ThinkPad and Lenovo B, E, K, M, and V Series Notebook Computers - General.
You may also clean install Windows 8.1 on your computer. For more information about clean install Windows 8.1 your Lenovo computer, refer to the document Clean Install of Windows 8.1 on ThinkPad and Lenovo B, E, K, M, and V Series Notebook Computers - General.
If there are any peripheral devices installed on your computer, you need to check if they are compatible with Windows 8.1. Go to Microsoft Windows 8.1 home page and the peripheral device manufacturers' Web sites for compatibility information. You might need to download device drivers for the peripheral devices.
You also need to check if all of your necessary application software is compatible with Windows 8.1. Go to the application software manufacturers' Web sites for compatibility information. You might also want to check Microsoft Windows 8.1 home page for any known compatibility issues with application software.
Click the following links to view Windows 8.1 hints, tips, and limitations.
Microsoft Windows 8.1 Hints & Tips on ThinkPad and Lenovo B, E, K, M, and V Series Notebook Computers
Application Software Limitations When Updating to Windows 8.1 on ThinkPad and Lenovo B, E, K, M, and V Series Notebook Computers
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Other company, product, or service names may be trademarks or service marks of others.
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