I was just checking out Lenovo's site today to see what's they have or for their recall news...etc. and stumbled upon their Windows 10 link Windows Support.
They are already getting ready.
Date: July 09, 2015
The following list contains systems that were released prior to Microsoft Windows 10 launch (July 2015).
Lenovo supported systems list for Windows 10 Upgrade
Windows 8 systems must be on Windows 8.1 update and Windows 7 systems must have Service Pack 1 (SP1) in order to upgrade to Windows 10
Be ready for Windows 10:
Get Windows 8.1 Update
Get Windows 7 Service Pack 1 (SP1)
The following configurations are not supported:
- Intel 2nd generation Intel® Core™ processors (Sandy Bridge)
- Intel 4th generation Intel® Core™ processors (Haswell) for 32-bit OS configurations
- Intel 5th generation Intel® Core™ processors (Broadwell) for 32-bit OS configurations
- Intel® Atom™ processors
- AuthenTec Fingerprint Reader
- Intel WiMAX 6250 on 3rd generation Intel® Core™ processors (Ivy Bridge) on: ThinkPad T430, T430s, X230, X230 Tablet, L430, L540, Twist T230u systems
- Ericsson F5521gw Wireless WAN on: ThinkPad X230 Tablet system.
Upgrade Instructions has additional Limitations information.
The system processor information is available within System Properties of the Microsoft Windows Control Panel.
For more information on Intel® Core™ processors, or Intel Products By Code Name, go to: Your Source for Intel® Product Information
Supported Systems - Desktops Windows 7 SP1 Windows 8.1 IDEACENTRE A530 X A7200 X A730 X A8150 X B3300 X B345 X X B40-30 X B40-70 X B40-80 X B50-70 X B50-80 X B5400 X B545 X B550 X B570 X B575e X D3005 X D5050 X D5055 X Erazer D315 X Erazer T420 X Erazer X310 X Erazer X315 X Erazer X510 X F5005 X F5050 X F50-55 X FLEX20 X G5000 X G5005 X G5005 X G5050 X G50-55 X K415 X K450 X K450E X M3300n X M5900n X R3900d X T3900v X LENOVO SERIES 40-30 X A540 X A740 X A9050 X B355 X B50-30 X X B50-35 X C20-05 X C20-30 X C255 X C260 X C355 X C360 X C365 X C40-05 X C40-30 X C455 X C460 X C470 X C50-30 X C560 X E50-00 X H30-00 X H30-05 X H30-50 X H425 X H500 X H50-00 X H50-05 X H500s X H50-50 X H50-55 X H515 X H515S X H520 X H530 X H530S X H535 X H535S X S20-00 X X S3040 X X S4005 X X S4030 X X S50-30 X X S520 X X S740 X X S780 X X S800 X S850 X THINKCENTRE E63z X X E73 X X E73s X X E73z X X E79 X X E93 X X E93z X X M3500q X X M4500q X M4500s X M4500t X M53 X X M6500s X M6500t X M7200z X X M7250z X X M73 X X M73z X M78 X X M79 X M8200z X X M8250z X X M83 X X M83z X X M873z X M8500s X M8500t X M93 X X M93p X X M9350z X X M93z X Supported Systems - Notebooks and Tablets IDEAPAD Erazer N40-30 X Erazer N40-45 X Erazer N40-70 X Erazer N50-70 X X Erazer Y410p X Erazer Z410 X Erazer Z505 X Erazer Z510 X Flex 14D X Flex 15D X G40-70M X G40-75M X G50-70M X G50-75M X N585 X N586 X X P585 X X S310 X S405 X X S410 X S410p X S410p Touch X S415T X S510p X S510p Touch X U330 Touch X U330p X U430 Touch X U430p X U530 Touch X V1050 X V1070 X V2000 X V3000 X V4400 X X V480 X X V480c X X V480s X X V580 X X V580c X X Y400 QC X Y400M X Y410p X Y500 X Y500 QC X Yoga 11s X Yoga 13 X Yoga 2 13 X Yoga 2 PRO-13 X Yoga 3 11 X Yoga 3 Pro X Yoga Tablet 2–1051F X Yoga Tablet 2–1051L X Yoga Tablet 2–1371F X Yoga Tablet 2–851F X Z410 X Z510 X Z510 Touch X LENOVO SERIES B40-30 X X B40-45 X B40-70 X X B40-80 X X B4400 X B4450s X B475e X B490s X B50-30 X X B50-30 Touch X X B50-45 X B50-70 X X B50-70Touch X X B50-80 X X B5400 X B575e X X E10-30 X X E40-30 X X E40-70 X X E4430 X X E50-70 X Flex 10 X Flex 2 Pro-15 X Flex 2-14 X Flex 2-14D X Flex 2-15 X Flex 2-15D X Flex 3-1120 X Flex 3-1470 X Flex 3-1570 X G40-45 X G405 X G405s X G40-70 X G410 X G410s Touch X G50-30 X G50-45 X G505 X G505s X G50-80 Touch X G510 X G510s Touch X G700 X G710 X K20-80 X K2450 X X K4450 X X M30-70 X X M40-35 X M40-70 X M4400 X X M4400s X X M4450 X X M490s X X M495 X X M50-70 X X M4400s X M5400 X Miix 2 10 X Miix 2 11 X Miix 3-1030 X Miix 3-830 X S20-30 X S20-30 Touch X S21e-20 X S40-70 X S41-70 X S435 X U31-70 X Y40-70 X Y40-80 X Y50-70 X Y50-70 Touch X Y70-70 Touch X Z40-75 X Z50-70 X Z50-75 X THINKPAD E130 X E135 X X E145 X E330 X X E335 X X E430 X X E431 X E435 X E440 X E445 X X E450 X E455 X E530 X X E531 X X E535 X E540 X E545 X E550 X E555 X Helix X X L330 X X L430 X X L440 X L450 X L530 X X S430 X X S431 X S440 X X S531 X X S540 X X T420 X T420s X T430s X T430u X X T431s X X T440p X T440u X X T440s X X T450 X T450s X T520 X T530 X X T530i X X T540 X X T540p X X T550 X X ThinkPad 8 64-bit X ThinkPad 10 X ThinkPad Twist X W530 X W540 X X W550 X X W550s X X X1 X X1 Carbon (Type 34xx) X X X1 Carbon (Type 20A7, 20A8) X X1 Carbon (Type 20BS, 20BT) X X X131e (AMD) X X X140e X X X220 X X220 Tablet X X230 X X X230s X X230i X X X230s X X240 X X240s X X X250 X X Yoga 11e X X Yoga 12 X X Yoga 14 X Yoga 15 X Yoga S1 X Yoga S3 X X Supported Systems - Workstations THINKSTATION E31 X E32 X X P300 X P500 X P700 X P900 X