TODAY:

12/10/2016 new driver models for direct download:717
LOGIN
Lenovo Ideapad U400 5 stars review"The best driver WIKI ever! I wil keep coming back for sure."Eric Smalter, Boston, MA
Supported languages for Lenovo Ideapad U400
Certifications for Lenovo Ideapad U400
5 stars for Lenovo Ideapad U400 "WOW! Finally my PC got up to speed!" Melany Kim 7/18/2015

Checking...for 12/10/2016 Updates

All drivers on semantic.gs are updated on daily basis.

However, a new version of Lenovo Ideapad U400 might have been uploaded since our last site update.

Lenovo Ideapad U400 Driver Download

Windows Compatibility for Lenovo Ideapad U400 driver

Lenovo Ideapad U400 Driver Details:

Lenovo Ideapad U400 File Name: lenovo_ideapad_u400.zip

Lenovo Ideapad U400 Driver Version: 711AT

Lenovo Ideapad U400 ZIP Size: 134.kb

Manufacturer: Lenovo

Lenovo Ideapad U400 was fully scanned at: 12/6/2016
Scan Status: driver download scanOK

Lenovo Ideapad U400 special revision for: Windows XP Media Center Edition 64 bit, Windows XP Tablet PC Edition 32 bit, Windows XP Media Center Edition 2005 32 bit, Windows 10 32 bit, Windows 8 Pro 32 bit, Windows 8 Enterprise 64 bit, Windows 8 32 bit, Windows Vista Home Basic 64 bit, Windows Vista Ultimate 32 bit

Lenovo Ideapad U400 Download Stats:

Driver Uploaded: 11/3/2016

Direct Downloads: 195
Most Recent Download: 12/8/2016
Managed Downloads: 4283
Most Recent Download: 12/9/2016
Download Mirrors: 5
Current Delay: 17 Seconds
Driver License: Free to the general public

Direct Download Success Stats:

Reports Issued By 183/195 Users

Success Reported By 43/183 Users

Driver Download Score67/100

Driver Installation Score60/100

Overall preformance Score66/100

Lenovo Ideapad U400 5 Thumbs Up5Thumbs
Up
Lenovo Ideapad U400 1 Thumbs Down1Thumbs
Down
Lenovo Ideapad U400 driver direct download was reported as adequate by a large percentage of our reporters, so it should be good to download and install.

Installation Manager Success Stats:

Reports Issued By 3571/4283 Users

Success Reported By 2857/3571 Users

Driver Download Score79/100

Driver Installation Score85/100

Overall preformance Score92/100

Lenovo Ideapad U400 2575 Thumbs Up2575Thumbs
Up
Lenovo Ideapad U400 193 Thumbs Down193Thumbs
Down
Lenovo Ideapad U400 driver installation manager was reported as very satisfying by a large percentage of our reporters, so it is recommended to download and install.

DOWNLOAD OPTIONS:

1. Direct Download

Select your OS and press "Download".

This option requires basic OS understanding.
Select Your Operating System, download zipped files, and then proceed to
manually install them.
Recommended if Lenovo Ideapad U400 is the only driver on your PC you wish to update.

 

2. Driver Installation Manager

This option requires no OS understanding.
Automatically scans your PC for the specific required version of Lenovo Ideapad U400 + all other outdated drivers, and installs them all at once.

Please help us maintain a helpfull driver collection.
After downloading and installing Lenovo Ideapad U400, or the driver installation manager, take a few minutes to send us a report:
* Only registered users can upload a report.

Don’t have a password?
Please register, and get one.
/100
/100
/100
captcha

Lenovo Ideapad U400 may sometimes be at fault for other drivers ceasing to function

These are the driver scans of 2 of our recent wiki members*

*Scans were performed on computers suffering from Lenovo Ideapad U400 disfunctions.

Scan performed on 12/10/2016, Computer: IBM System X3650 M4 : -[7915E3G

Outdated or Corrupted drivers:8/16

Device/DriverStatusStatus DescriptionUpdated By Scanner
Motherboards
Advanced Micro Devices Controller SMBus processore comunicazioni I/O ATIOutdated
Mice And Touchpads
Microsoft Microsoft Serial MouseUp To Date and Functioning
Logitech Logitech USB First/Pilot Mouse+Corrupted By Lenovo Ideapad U400
Usb Devices
Energizer Energizer USB ChargerUp To Date and Functioning
Sound Cards And Media Devices
Motorola Motorola Messenger Modem Audio DeviceCorrupted By Lenovo Ideapad U400
Network Cards
Intel(R) 82566DC-2 Gigabit Network ConnectionOutdated
Keyboards
Microsoft HID KeyboardUp To Date and Functioning
Hard Disk Controller
Microsoft SiS PCI IDE ControllerCorrupted By Lenovo Ideapad U400
Others
Lucent Lucent Win ModemCorrupted By Lenovo Ideapad U400
Microsoft Texas Instruments PCI-7x20/6x20 CardBus ControllerUp To Date and Functioning
Cameras, Webcams And Scanners
Canon Canon MG5300 seriesUp To Date and Functioning
Video Cards
ATI RADEON X600 Series Secondary (Microsoft Corporation - WDDM)Up To Date and Functioning
Input Devices
KME Dispositivo de interfaz humana USBCorrupted By Lenovo Ideapad U400
Port Devices
PROLiNK PROLiNK Voice Device (COM9)Corrupted By Lenovo Ideapad U400
Monitors
Sony Digital Flat Panel (1024x768)Up To Date and Functioning
Mobile Phones And Portable Devices
Acer NOKIAUp To Date and Functioning

Scan performed on 12/10/2016, Computer: HP HP Pavilion Dv2700 Notebook PC

Outdated or Corrupted drivers:4/20

Device/DriverStatusStatus DescriptionUpdated By Scanner
Motherboards
Intel(R) 5520/5500/X58 I/O Hub GPIO and Scratch Pad Registers - 3422Corrupted By Lenovo Ideapad U400
Mice And Touchpads
Logicool HID-compliant mouseCorrupted By Lenovo Ideapad U400
Logicool Logitech USB TrackMan WheelUp To Date and Functioning
Usb Devices
Logitech Logitech USB Camera (Pro 5000)Up To Date and Functioning
Sierra Wireless USB Mass Storage DeviceUp To Date and Functioning
Sound Cards And Media Devices
Realtek AzureWave AW-CA100/100DUp To Date and Functioning
DisplayLink Lenovo USB AudioCorrupted By Lenovo Ideapad U400
C-Media Multimedia Audio ControllerUp To Date and Functioning
Network Cards
Intel(R) WiFi Link 5100 AGNUp To Date and Functioning
Keyboards
Microsoft Keyboard Device FilterUp To Date and Functioning
Hard Disk Controller
Intel(R) 82801BA Ultra ATA ControllerUp To Date and Functioning
Others
Microsoft HID-compliant apparaatUp To Date and Functioning
Nokia Nokia C6-00 USB PhonetUp To Date and Functioning
Intel USB-IF USB 3.0 HubUp To Date and Functioning
Cameras, Webcams And Scanners
Canon Canon MG5300 seriesCorrupted By Lenovo Ideapad U400
Video Cards
Intel(R) 82945G Express Chipset Family (Microsoft Corporation - WDDM 1.0)Up To Date and Functioning
Input Devices
Microsoft USB Human Interface DeviceUp To Date and Functioning
Port Devices
PROLiNK PROLiNK Voice Device (COM9)Up To Date and Functioning
Monitors
Sony Digital Flat Panel (1024x768)Up To Date and Functioning
Mobile Phones And Portable Devices
Acer NOKIAUp To Date and Functioning
Driver ModelOriginal Upload DateLast ModificationDriver FileFile SizeCompatible Computer ModelsAvailabilty To Instalation Manager
Lenovo Ideapad U400 Y71.16271/7/201512/29/2015lenovo_ideapad_u400-y71.1627.exe205kbHP CQ2803ESm, SAMSUN R710, Lenovo ThinkCentre Edge 72, HP Pavilion ze4500, HP AY020AA-ABL p6320f, Panasonic CF-52AJCBDBM, NEC PC-MY18XEZ78, IBM 622133G, HP HP Pavilion dv5, HP KN472AA-ACB a6421.ru, HP HP Compaq nx6310, IBM 187134M, Packard Bell NC-ENLE11BZ-4508G1TMNKS, and more.
Lenovo Ideapad U400 1.19382/26/201512/29/2015lenovo_ideapad_u400-1.1938.exe63kbGateway 6834MX, IBM System x3650 M3 -[7945K4G, HP EJ237AA-ABF w5267.f, Lenovo 9439Y5B, Gateway MD7321U, Sony VGN-NS120AH, ASUS RS162-E4/RX4, Sony VGN-TZ15AN, Panasonic CF-18KDHNBVA, WIPRO WSG37425V-0038, Toshiba Dynabook T553/37JWB, HP WK697AA-ABD p6329de, MAXDATA MP2820 01, Sony VGC-RA204, Sony SVS1312AJA, and more.
Lenovo Ideapad U400 423432/22/201512/30/2015lenovo_ideapad_u400-42343.exe62kbIBM 2366GG4, LG R580-U.APD1WT, HP P6570jp, Lenovo ThinkPad Edge E220s, Acer TM6495T, HP PS135AA-ABY t777.dk, Panasonic CF-Y2FW7AXS, IBM NetVista personal computer, Lenovo 2756AF8, Lenovo 6075Y74, Fujitsu FMVA54EW, QUANMAX ChiliGREEN X7, HP A0316001, and more.
Lenovo Ideapad U400 7372.1012/9/201412/29/2015zmflakmg-7372.10.exe179kbHP S5680es, NEC PC-VY13MRFEAEHU, Sony VGN-TZ31XN_B, Mecer X105, Sony VGN-CS190N, Sony VGN-TZ36L_B, Gateway W4605, HP PS233AA-ABF m1255.f, HP P6725de, IBM 8427CDU, IBM 8184W3Z, NEC POWERMATE RD391161295, HP VG123AA-ABF p6127f, Sony VPCCA2Z0E, LG V960-UH50K, Lanix BRAIN 4140, NEC E6500, Gateway CT5628, and more.
Lenovo Ideapad U400 1.13242.11/1/201512/30/2015lenovo_ideapad_u400-1.13242.1.exe158kbLenovo ThinkPad T530, HP H9-1390ef, HP VS312AA-UUG HPE-025be, Toshiba Satellite C660-196, JDL NOTE UL, WIPRO WIV37555-1436, HP KC707AA-ABE m9079.es, Packard Bell IMEDIA 6460, Sony VPCEA47EC, Panasonic CF-29NAQC9BM, HP HP Pavilion dv 9500 Notebook PC, Fujitsu FMV8NU1LC5, Open Labs Neko/Miko, and more.
Lenovo Ideapad U400 2.1342/6/201512/30/2015lenovo_ideapad_u400-2.134.exe186kbHP RR518AA-ABH S7730, IBM 2672RD3, Sony VGC-JS15G_S, HP A0316001, HP DM150A-ABM A320M, HP Presario R3200, Fujitsu LIFEBOOK E8310, Northern Micro P4865G-M-AS, Sony VPCEA23EN, Sony VGC-JS51B_P, HP AY627AAR-ABA a4313w, Toshiba SATELLITE L850-A891, Lenovo 20B6CTO1WW, HP VS179AA-ABH p6250nl, and more.
Lenovo Ideapad U400 F71.169712/1/201412/28/2015ijmzrmsy-f71.1697.exe85kbLG E500-S.AP22R1, Sony VPCF132FX, HP 600-1210ch, Lenovo 627436G, Lenovo ThinkPad X60, Dedicated OEM-A4501-00, Sony VGN-NW20EF_W, LG S1-MOM1E2, ECS Z77H2-A2X Deluxe, Acer Aspire 4925, NEC PC-MJ26XRZWTSBJ, Packard Bell ISTART B4005, LG LG PC, HP FL210AA-ABV a6512.me, Sony VGNFW590GAB, Lenovo ThinkPad Edge E530, and more.
Lenovo Ideapad U400 1.11.12.18410/15/201412/30/2015lenovo_ideapad_u400-1.11.12.184.exe131kbHP Pavilion dv2854ca, Sony VGC-RM75UD, Fujitsu FMVLRD50P, NEC PC-LL550HG1F, HP VG123AA-ABF p6127f, IBM 8187SYU, Sony VPCEH3T9E, LG R510-L.C2O1Z, HP PS206AA-B14 t880.be, Dell Inspiron 580, TYAN S2895, HP VT557AA-ABG 600-1150a, HP HP Compaq nc6110, Sony VGN-TZ33_B, HP 700-090eg, HP GG625AA-UUW a6032.sc, Lenovo ThinkPad T60, Lenovo 23242F3, and more.
Lenovo Ideapad U400 61.12601/16/201512/29/2015lenovo_ideapad_u400-61.1260.exe38kbIBM 6229LQG, IBM 2724JU1, Matsonic MS9387E, Gateway H5212, Sony VGN-TT46MG_B, Fujitsu FMVNFD75R, Sony VPCZ11A7R, NEC PC-VJ22GXNEHTXA, Panasonic CF-31UEUJDDA, ECS BAT-I, and more.
Lenovo Ideapad U400 2.1290211/3/201412/28/2015-2.12902.exe161kbLG R580-U.ARD5WT, Toshiba Dynabook SS M41 200E/3W, Intel C16, HP Pavilion dv2000, Sony VGN-Z51MG_B, Fujitsu FMVP773BDW, MEGAWARE Mage All-In-One, Packard Bell TK36, Toshiba Dynabook REGZA PC D712/T3FM, HP HPE-430it, Acer TravelMate 250, and more.
Lenovo Ideapad U400 426991/14/201512/30/2015lenovo_ideapad_u400-42699.exe142kbLG R500-U.CPCIT, IBM 8215EKU, HP KN280AA-ABM s3410la, Panasonic CF-N9LWRJDS, MAXDATA PLATINUM 100 I M5, Sony VPCEH3T9E, Seneca PRO02421, Sony SVT1311EFYS, Fujitsu CELSIUS H265, HP 168B, Toshiba SATELLITE L850-A902, Intel Intel G33 Series, HP 310-1125uk, NEC PC-LL550KJ1K, Lenovo 1S16800367700DD, NEC RNM21223076, NEC PC-MK31MEZCE, NEC Express5800/56Xd [N8000-576, and more.
Lenovo Ideapad U400 1.122722/12/201512/27/2015ryhttq-1.12272.exe76kbToshiba Dynabook T553/37JWB, HP WK697AA-ABD p6329de, MAXDATA MP2820 01, Sony VGC-RA204, Sony SVS1312AJA, HP FK785AA-A2L s3620f, NEC PC-MY26AEZR4, LG LW75-SGGV3, NEC PC-MJ26XRZWTSBJ, ASUS W3A, and more.
Lenovo Ideapad U400 2338610/20/201412/30/2015lenovo_ideapad_u400-23386.exe200kbIBM D945PLRN, HP PS350AA-ABS 1240.se, Gateway FX540B, Sony VGN-AW52JGB, MAXDATA Fusion 1000 I, MSI MSI Notebook EX630, HP HP Pavilion dv8000, IBM 8124PAT, HP KJ253AA-ABD a6355.de, ASUS X200MA, HP GB342AA-AB0 a6086tw, Sony VPCSE23FX, HP RC520AA-ABU m7590.uk, Seneca Pro318568, IBM 2374F14, Compaq Presario 5471EA 470030-395, Viglen VIG615M, WIPRO WIV37455-0653, and more.
Lenovo Ideapad U400 N300911/24/201412/27/2015lenovo_ideapad_u400-n3009.exe100kbAcer TravelMate 5520, Sony VGN-CR260F, HP PS347AA-B1U t875.se, Panasonic CF-19KHRC62B, Sony VGN-CR313H_B, HP EC658AA-ABH W5170.NL, NEC PC-LL750RG1B, MSI VR321, Sony VPCEB13FG, LG R590-PR70K, IBM 8215WBM, and more.
Lenovo Ideapad U400 41.101.142/28/201512/30/2015lenovo_ideapad_u400-41.101.14.exe151kbHP HP 510 Notebook PC, HP Presario V3000, Sony VGN-A317M, Fujitsu Stylistic LT P-600, EDsys EPROI5120W7P, IBM 8114WGZ, NEC EASYNOTE P910R00406, Fujitsu FMVNFB70RG, Sony SVD11219CJB, Lenovo ThinkCentre A70, and more.
Lenovo Ideapad U400 7282910/3/201412/29/2015lenovo_ideapad_u400-72829.exe98kbLenovo ThinkPad L530, HP HP Compaq nc8000, Acer Aspire5740, ASUS P5K-VM/S, Sony PCG-K35, IBM 8215WBM, Toshiba Dynabook T552/36HRJ, MSI GP60 2PE, HP NM798AA-UUZ IQ532ch, HP PS227AA-ABE t880.es, Sony VPCF13BFX, Supermicro X7QC3, Lenovo ThinkPad X61 Tablet, Toshiba Dynabook T350/34BCS, ECS PT880PRO-A, Notebook MIM2260, HP HP Pavilion DV6-3206AX, and more.
Lenovo Ideapad U400 J440442/16/201512/27/2015pu-j44044.exe124kbAcer Aspire M1850, Gigabyte Z68MA-D2H-B3, Sony VGN-NS38M_S, HP PX813AA-ABX a1000.fi, Packard Bell EasyNote_MX37-V-058NL, Compaq PJ536AA-ABA SR1265CL NA441, IBM IBM System x3200 -[7042C06, Sony VPCF136FX, Lenovo 7360W78, Sony VGN-CR35T_B, Sony VGN-NS38M_P, TBD K8A8X-M, and more.
Lenovo Ideapad U400 G1.134042/21/201512/30/2015lenovo_ideapad_u400-g1.13404.exe183kbSony VGN-TZ15AN, NEC VERSAP550 NN680209359, Intel DB43LD, Toshiba Dynabook BX/31L2, HP WX217AV-ABA MS230z, Sony SVE14115FBB, IBM 6229LQG, Packard Bell IPower J9000, Sony VGN-AW150Y, Sony PCV-HS72B, Intel MGM965JB, VIA VT8653-8233, IBM 817231G, IBM 2374SU9, HP HP Pavilion 11 x2 Notebook PC, HP P6772l, and more.
Lenovo Ideapad U400 6308411/13/201412/29/2015lenovo_ideapad_u400-63084.exe66kbLenovo ThinkCentre M70e, Sony VGN-P45GK_W, Sony VGN-NS38M_S, HP PS206AA-B14 t880.be, NEC PC-VZ500AD, IBM 1871Y16, Gateway H5212, Compaq EC516AA-ABH SR1519NL NL530, Compaq DA309A-B14 6540. BE910, EVGA E679 0.0, MSI MS-7360, and more.
Lenovo Ideapad U400 T2.11.10723/5/201512/27/2015lenovo_ideapad_u400-t2.11.1072.exe27kbSony VGN-UX50, Sony SVF14N15CLB, Fujitsu FMVNS1E3, Shuttle XP400, INVESTRONICA PTC-Q965, EMachines M5300 Series, Lenovo Lenovo G470, Acer Aspire E5-511P, IBM 2525AP5, HP Pavilion zd7000, Lenovo ThinkStation S20, Lenovo ThinkPad Edge 15, Sony VGN-FW190CU, TAROX Business PC 3200, Notebook MIM2320, Fujitsu FMVNA1CE, and more.
Lenovo Ideapad U400 71.12421/6/201512/28/2015lenovo_ideapad_u400-71.1242.exe146kbHP PS512AA-ABA a815, Lenovo ThinkPad W700, Intel SQ45CB, Sony VPCCW21FD, Compaq DW212A-UUW S6100ND SC410, HP EC619AA-ABY a1130.dk, HP HP EliteBook 8560p, Compaq KP296AA-ABE SR5412ES, LG R580-UP87K, HP KP266AA-ABZ a6431.it, ALFATRON SpA HX610, Sony VPCX115LW, Sony VPCW21C7E, HP HP Pavilion zd8000, IBM System x3300 M4 -[7382E3G, AnabelleB Graduate VA20, HP PG129AA-UUZ t640.ch, HP P7-1031, IBM System x3650 M4: -[7915AC1, and more.
Lenovo Ideapad U400 4000812/4/201412/28/2015aphcomd-40008.exe175kbFujitsu FMVA54EW, QUANMAX ChiliGREEN X7, HP A0316001, Sony VGN-FE52B_H, MSI MS-9A45, Gigabyte P35-S3G, Compaq EG217AA-ABG SR1699AN AN540, ASUS C90S, LG R470-KR30K, Packard Bell IMEDIA B2218 UK, and more.
Lenovo Ideapad U400 2.12661.12/20/201512/30/2015lenovo_ideapad_u400-2.12661.1.exe78kbHP VC758AA-ABZ p6120it, Panasonic CF-30C4TAABM, HP Pavilion ze4600, WIPRO WSG37555W7-0288, Sony VGC-RC70S, Gigabyte 7GEWH, VIA VT8653-8233, Lenovo ThinkPad Edge E525, AT PREMIO BINGO, Compaq DT260A-ABU S5210UK GB340, HP HP Envy 6-1180ca, IBM IBM System x3400 M3 Server -[7379K3G, HP HP Pavilion dv6 VS079EA#UUW, Sony VGC-LT91S, Gateway FX6800-05, and more.
Lenovo Ideapad U400 236871/1/201512/28/2015qijx-23687.exe205kbLG K1-2249A9, AT TRILINE PROFI I48, ALFATRON SpA DN1010/M, Compaq EG217AA-ABG SR1699AN AN540, Roemer KW28/2007, Compaq NY487AA-AB0 CQ2229TW, HP PAVILION DV8000, HP 310-1210es, Sony VGN-UX71, HP P7-1040be, and more.
Lenovo Ideapad U400 4031.1211/20/201412/29/2015lenovo_ideapad_u400-4031.12.exe114kbHP EY906AA-ABZ s7510.it, Fujitsu FMVXN0X81, Toshiba PORTEGE A600, Sony PCG-FX602, Mitsubishi CX25XCZOTSBF, Panasonic CF-T5MWJTFBF, IBM System x3200 M3 -[732842G, Sony VGNFW590GAB, Panasonic CF-F9JYFCDR, Sony VPC-M120AB, Fujitsu FMVF56HDWY, Dell Vostro 5470, Toshiba Dynabook AX/3527CMSB, Shuttle SB83V10, NEC PC-VY22MAZ7A, Compaq PJ688AV-ABA SR1005T NA440, and more.
Lenovo Ideapad U400 723892/8/201512/28/2015jnzcro-72389.exe54kbPanasonic CF-SX2KEMDP, HP RR820AA-UUZ m7770.ch, IBM 8183Y59, Supermicro X7DB8-X, RIOWORKS HDAMB, HP RJ116AA-UUW m7675.sc, HP PU002AV-ABA A810Y, LG R580-UAAD6BT, HP KX762AA-ABE a6522.es, Clevo P15xEMx, Panasonic CF-W2FWPAXP, HP HP EliteBook 8460p, Panasonic CF-53JAWZYDE, and more.
Lenovo Ideapad U400 3262.171/23/201512/27/2015lenovo_ideapad_u400-3262.17.exe94kbNEC POWERMATE RD391161295, NEC PC-VY17MRFEAEH1, ECS BAT-I, HP GU508AA-B14 m9080.be, Gateway CT5628, Intel OLFV, HP HP Pavilion dv8000, IBM 2645CBH, NEC PC-LL550KJ1K, NEC PC-LF7506D1FL, Gateway 310 2900297, NEC PC-VY16MRFJAFUX, HP 220-1100t, IBM 2652P5U, Toshiba Dynabook BX/31L2, Sony SVP1322R4RBI, Fujitsu FMVD94G041, and more.
Lenovo Ideapad U400 833061/11/201512/30/2015lenovo_ideapad_u400-83306.exe23kbPCCHIPS M770LMRT, Notebook MIM2320, Lenovo ThinkPad T430u, Sony VGN-NW250D, IBM 6221RYU, Lenovo ChiefRiver Platform, Sony VGN-CS60B_Q, Sony VGN-P50_G, NEC PC-BL350DW6B, Dimotion PCDO5U1, Sony VGN-FE41ZR, Toshiba SATELLITE L850-153, Samsung SM50S, and more.


Please Note: There are particular operating systems known to have problems with Lenovo Ideapad U400:
  • Windows XP Professional
  • Windows XP Media Center Edition 2003
  • Windows XP Tablet PC Edition
  • Windows Fundamentals for Legacy PCs
If you encounter problems with the direct download for these operating systems, please consult the driver download manager for the specific Lenovo Ideapad U400 model.
Laptop Lenovo Ideapad U400Tablet Lenovo Ideapad U400Download Lenovo Ideapad U400Upgrade Lenovo Ideapad U400Update Lenovo Ideapad U4002016 Lenovo Ideapad U400Free Lenovo Ideapad U400Data Lenovo Ideapad U400Info Lenovo Ideapad U400Help Lenovo Ideapad U400Guide Lenovo Ideapad U400Comments Lenovo Ideapad U400Windows 10 Lenovo Ideapad U400Vista Lenovo Ideapad U400Windows 7 Lenovo Ideapad U400Install Lenovo Ideapad U400