Lenovo computer can upgrade to Windows 8.1

Failure phenomenon:

Whether my computer can be upgraded to Windows 8.1

Solution:

Hardware requirements for supporting Win8.1

Windows 8.1 can perform well on the same hardware that supports Windows 8:

· Processor: 1 GHz or faster

· Memory: 1 GB (32 bits) or 2 GB (64 bits)

· Free hard disk space: GB (32-bit) or GB (64-bit)

· Graphics card: Microsoftdirectx 9 graphics device with WDDM driver

Warning

· In order to use Windows 8.1, you must log on to your computer using a Microsoft account. The option to create a local account will be available in the final release version of Windows 8.1.

To use certain features, you also need to meet the following additional requirements

· For Windows 8.1 64-bit installations, your CPU must also support cmpxchg16b, PREFETCHW, and LAHF/SAHF.

· To use touch, you need to support a multi-touch tablet or monitor.

· To access the Windows store and download and run the application, you need a valid Internet connection, at least 1024 x 768 screen resolution, and a Microsoft account.

· Internet access (may generate ISP charges).

Windows will check to see if your system meets the requirements before you update to ensure that your system supports Windows 8.1.

· For more information, see what is the system requirements for Windows 8.1?

Second, Lenovo support Win8.1 Model summary

Erazer, Ideacentre, Lenovo series desktops

Erazer Series:

Erazer D215, Erazer D230, Erazer D305, Erazer D315, Erazer T410, Erazer T430, Erazer X510, Erazer X700

Ideacentre Series:

Ideacentre K410, Ideacentre K415, Ideacentre K430, Ideacentre K450, Ideacentre Q190

Lenovo Series:

Lenovo H415, Lenovo H425, Lenovo H430, Lenovo H435, Lenovo H505, Lenovo H505s (home Hyatt S505), Lenovo H515, Lenovo H515s (home Hyatt S515), Lenovo H520, Lenovo h520g, Lenovo H520s (Home Yue S520), Lenovo H525s (home Hyatt S525), Lenovo H530, Lenovo H530s (home Hyatt S530), Lenovo H535, Lenovo h535s (Home Yue S535), a new dream of H515, New Dream H530, New dream H535

Ideacentre, Lenovo series integrated Machine

Ideacentre Series:

Ideacentre A520, Ideacentre A530, Ideacentre A720, Ideacentre A730, Ideacentre B340, Ideacentre B345, Ideacentre B350, Ideacentre B355, Ideacentre B540, Ideacentre B545, Ideacentre B750, Ideacentre Flex, Ideacentre Horizon 27

Lenovo Series:

Lenovo C240, Lenovo C245, Lenovo C255, Lenovo C340, Lenovo C345, Lenovo C355, Lenovo C440, Lenovo C445, Lenovo C455, Lenovo C540

IdeaPad Series Notebooks

Flex series:

Ideapad FLex14, Ideapad FLex15

Ideapad P Series:

Ideapad P580

Ideapad S Series:

Ideapad S206 (CPU-E450,E300,E1-1200,E2-1800,C60 model), Ideapad S210, Ideapad S210 (Touch), Ideapad S215, Ideapad S300, Ideapad S310, Ideapad S400, Ideapad S400 (Touch), Ideapad s400u, Ideapad S405, Ideapad S410, Ideapad s410p, Ideapad s410p (Touch control), Ideapad S415, Ideapad S415 (Touch), Ideapad S500, Ideapad S500 (Touch control), Ideapad s510p, Ideapad s510p (Touch control)

Ideapad U Series:

Ideapad U310, Ideapad U310 (Touch), Ideapad u330p, Ideapad U330 (Touch control), Ideapad U410, Ideapad U410 (Touch), Ideapad u430p, Ideapad U430 (Touch), Ideapad U510, Ideapad U530 (Touch control)

Ideapad y Series:

Ideapad Y400, Ideapad y410p, Ideapad Y480, Ideapad Y485, Ideapad Y500, Ideapad y510p, Ideapad Y580

Ideapad Yoga Series:

Ideapad Yoga 11s, Ideapad Yoga11, Ideapad Yoga13

Ideapad Z Series:

Ideapad Z380, Ideapad Z480, Ideapad Z485, Ideapad Z580, Ideapad Z585

Ideatab K Series:

Ideatab K3011

Erazer, Lenovo Series notebooks

Erazer Series:

Erazer N410, Erazer N480, Erazer N485, Erazer N580, Erazer N581, Erazer N585, Erazer Z400, Erazer Z400 (Touch control), Erazer Z410, Erazer Z500, Erazer Z500 (Touch control), Erazer Z501, Erazer Z505, Erazer Z510, Erazer Z510 (Touch), Erazer Z710

Lenovo G Series:

Lenovo G400, Lenovo G400s, Lenovo G400s (Touch), Lenovo G405, Lenovo G405s, Lenovo G410, Lenovo G480imr, Lenovo G480metal, Lenovo G485, Lenovo G490, Lenovo G500, Lenovo G500s, Lenovo G500s (Touch), Lenovo G505, Lenovo G505s, Lenovo G510, Lenovo G580imr, Lenovo G580metal, Lenovo G585, Lenovo G700, Lenovo G710

Yang Tian and Zhaoyang series notebooks

Yang Tian Series notebook:

Yang days b475e, Yang days B480, Yang days b575e, Yang days B580, Yang days M490, Yang days m490s, Yang days M495, Yang days V480, Yang days v480c, Yang days v480s, Yang days V580, Yang days v580c, Yang days B4400, Yang days B5400 (non-touch machine Type), Yang Tian B590, Yang Tian M5400 (non-touch model), Yang Tian v4400u, Yang days M4450, Yang days M4400, Yang days V4400, Yang days m4400s, Yang days b4450s, Yang days b490s, Yang days B490, Yang days b4400s

Zhaoyang Series Notebooks:

Zhaoyang K2450, Zhaoyang K4450, Zhaoyang K49, Zhaoyang E4430, Zhaoyang E49, Zhaoyang K29, Zhaoyang K4350

Kai days, Yang Tian series desktop, one machine

Kai Day series:

Kai Day A7100 Series (H61 platform), Kai-day A3100 series (A45 platform), Kai-day B5800 series (A75 platform), Kai-day B5700 series (A68 platform), Kai-day B4350 series (H61-ivybridge platform), Kai-day M6500 series (Q85 platform ), Kai-day M6400 Series (Q75), Kai-day M4500 Series (H81), Kai-day M4350 series (H61-ivybridge platform)

Yang Tian Series (x stands for number 0-9):

(Risk tip: Upgrade to Win8.1 after a key restore work, will not be able to restore your computer to the WIN8 system, please upgrade carefully.) If you are sure to upgrade to the Win8.1 system, please do the first time after the successful upgrade Win8.1 system backup)

Yang Tian S series: s85x,s80x,s78x,s77x,s74x,s72x,s71x (H61-ivybridge platform), s59x,s56x,s51x,s52x,s31x,s32x.

Yang Tian a series (Q87,q77,q75,b75,h81,h61-ivybridge,a75 platform)

Yang Tian M series (H81,h61-ivybridge,a75,a68 platform)

Yang Tian T Series (H81,h61-ivybridge,a75 platform)

Yang Tian R series (H61-ivybridge,a75 platform)

Yang Tian W series (H81,h61-ivybridge platform)

ThinkCentre series desktop, integrated machine

ThinkCentre m8400t (Q77 platform), ThinkCentre m8400s (Q77 platform)

ThinkCentre m6400t (Q75 platform), ThinkCentre m6400s (Q75 platform)

ThinkCentre m4350t (H61-ivybridge platform), ThinkCentre m4350s (H61-ivybridge platform), ThinkCentre m4350q (H61 platform)

ThinkCentre m4250s (H61-ivybridge platform)

ThinkCentre m4300t Dual-network isolation model (H61-ivybridge platform), ThinkCentre m4300t security model (H61-ivybridge platform)

ThinkCentre m8000t (Q77 platform)

ThinkCentre m9201z (Q77 platform)

ThinkCentre m7100z (H61-ivybridge platform)

ThinkCentre m7101z (H61-ivybridge platform)

ThinkPad Series Notebooks

ThinkPad W Series:

ThinkPad W530

ThinkPad E Series:

ThinkPad Edge 130/135, ThinkPad Edge 330/335, ThinkPad Edge 430/435, ThinkPad Edge 445/545, ThinkPad Edge 530/535

ThinkPad X series:

ThinkPad X1 Helix, ThinkPad X1 Carbon, ThinkPad x131e, ThinkPad X230, ThinkPad X230s, ThinkPad x240s

ThinkPad L Series:

ThinkPad L330, ThinkPad L430, ThinkPad L530

ThinkPad S Series:

ThinkPad Twist s230u, ThinkPad s3-s431, ThinkPad S430, ThinkPad s5-s531, ThinkPad s5-s540, ThinkPad s3-s440

ThinkPad T Series:

ThinkPad T430, ThinkPad T430s, ThinkPad T430u, ThinkPad T431s, ThinkPad T530

ThinkPad Tablet series:

ThinkPad Tablet2