Lenovo Support - Laptop problems

Good day,
I was hoping someone could help me I phoned Lenovo support centre and I was disconnected,
My laptop has an issue with Blue Screen ; while working my computer it just gives me a blue screen saying "Your PC has run into a problem and will restart.  My PC restarts and then  I carry on working.
I don’t know what the problem may be I have not changed anything on this laptop it is stock standard. I have Windows 8 which was installed on the computer, I have Microsoft office 2007 which was given to me by my IT if anyone can help me or guide me please.
Also I bought my laptop in about June of this year.  My warranty will be finishing off in November I spoke to a lady by the name of Mennatallah and she advised me she will be sending me an email with details where I must send my receipt to so that my warranty can be amended.  Could someone help me in full here or get someone to sort out my computer problem?  I am not phoning support again just so that I can get hung up on...
Thank you very much,
Moderator note; full name of Lenovo employee / associate edited Forum Rules

hi Shearidan,
From the screenshot, the main causes of the BSOD's are btsokrnl.exe, ndistapi.sys, and hal.dll, in which, are essential windows system files.
From this source, here's a background on the BSOD:
0x00000124 - "Windows passes on the hardware error report in the form of a "stop 0x124" because it can't do anything else once the hardware has signalled an uncorrectable fault condition. In technical terms, the vast majority of stop 0x124 crashes correspond to "Machine Check Exceptions" (MCEs) issued by the processor to alert the software to the existence of a hardware problem. It's possible for drivers to indirectly induce hardware to register MCEs by "driving" in ways that are confusing to the hardware"
This crash can be a hardware fault or a driver issue. To isolate, try to:
1. Run Windows Update to get the latest patch and bug fixes
2. Follow this guide on how to run Driver Verifier
3. Reboot the machine and observe the computer.
If the BSOD re-occurs, perform a clean boot and observe the computer again.
Let me know how it goes.
Regards
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
Follow @LenovoForums on Twitter!

Similar Messages

  • 3000 N100 - contacting Lenovo re laptop problems

    My 3000 N100 is a nightmare - 7 months after I bought it, it could no longer be used as the graphics chip was damaged and the screen flickered so much that it was unusable. As the machine was still under the 1 year warranty Lenovo repaired it but the same issue has arisen again, and I understand that the extended warranty as a result of the repair was only 3 months.  The cost of this repair means that I am left with an almost worthless laptop after only 18 months, that has already gone through 2 graphic chips (I think this is the problem anyway but I'm a bit of a tecnophobe..).   
    One of my work colleagues told me that companies have a duty to repair or replace items that go wrong before the end of a 'reasonable' service life under the Sale of Goods Act. So I'm hoping that Lenovo would agree that 18 months is not a reasonable service life for their laptops, particularly when it has malfunctioned twice in that time, and would consider a repair, but how do I contact them? There seems to be no contact address on their website and I also can't find any telephone numbers except for Lenovo. Anyone help??

    Take it to an especialized repair laboratory and do that BGA rework (reclaim for warranty over that work). Another option is changing the whole motherboard.
    You can't do anything yourself because you don't have knowledge and tools.
    Best regards.
    IPnaSh
    First Spanish Community Guru - Colaborador ad honorem

  • Three Problems with Lenovo Z510 Laptop

    i worked for 6 months in order to have 600 euro  for buying this lenovo z510 laptop , 
    after one week of work on it  , i have 3 serious problem without any solution , and without any volition from the lenovo technical staff to fin a way and resolve this problem , i'am fed up because i've been working hard for 6 months , and than when i bouhght rhis pc i find only **bleep** ...
    i'am not going  to shut-up my month , i'll complain to the court if you don't find me any solution for those 3 problem :
    Problem 1 :
    *the major problem : the fan is spinning all the time , and it's make a very loud sound even i'am not runnin nothing heavy and the temprature it's 40°
    Problem 2 :
    i can't run LENOVO battery manager on w8.1 
    Problem 3 :
    The webcam is not 720p HD 
    I'am really fed up and i want solutions right now , that's your duty towords your clients , you are a new mark , and you have to do all your best in order to attract new clients .

    Moderator comment: To clarify, it was a volunteer Community Moderator, who is not employed by Lenovo, that removed the post that violated the Participation Guidelines. Regards.
    English Community   Deutsche Community   Comunidad en Español   Русскоязычное Сообщество
    Community Resources: Participation Rules • Images in posts • Search (Advanced) • Private Messaging
    PM requests for individual support are not answered. If a post solves your issue, please mark it so.
    X1C3 Helix X220 X301 X200T T61p T60p Y3P • T520 T420 T510 T400 R400 T61 Y2P Y13
    I am not a Lenovo employee.

  • Need an answer Lenovo G530 laptop.. The support line doesnt work in my country..

    Hi, first i live In Israel and i've called the main support line and they told me they dont deal with my laptop and directed me to the ones who do > their phone is offline all day (when they should be *working* between 9 am to 5 pm). I've called them before a few years ago and they gave me much help.  Hopefully some one in charge can give me a working phone number for support. 
    I have a lenovo g530 laptop, its overall nice and i got it as a gift few years ago. Its been bugging me for a long time tho. 
    My questions that i've been thinking of for years: 
    -I've downloaded the BIOS drivers from the driver page and after installing them on all: windows xp, windows vista, windows 7 they caused a BSOD (blue screen of death) and i had to re-format my computer and re-install windows. So my question how exactly can i install the BIOS without crashing my system? My Bios have been at 1.0 for a long time.. 
    Second, you might just say 'no' you cant right away but... 
    -This laptop runs on an imbeded 'chip' thats supposed to function as an internal video card, i've noticed some G530 laptops have Nvidia geforce 9300m on their Laptop, is it possible to install it on mine? (buying the video card and adding it in?), if not.. Is there a video card on this planet i can install on my laptop?... Am sure people ask this all the time because Mobile intel 4 express chipset is absoloute garbage and if i knew i was getting this laptop i would of never allowed my parents to purchese it. 
    Tl,dr:
    How do you install bios without getting bsod and having to re-format.
    is there a video card i can add instead of this imbeded piece of crap i got (any video card.. Am sure something must fit the motherboard.. And i know the imbeded once works with the Cpu and its internanly connected.. Cmon man.. i dont wanna throw away this laptop and buy a new pc). 
    Please respond and help!.

    if you called them today, due to it's sunday, it's normal that they don't answer.
    about upgrade, if you have the mxm solution, it could be possible.
    about bios, you should've reseted the bios after flashing. it also could be compatible issuee, i'm not sure
    ( you may need to upgrade drivers, too )

  • Where can I find linux drivers for my laptop? Does lenovo support provides that to download?

    Dear All,
    I purchased a Lenovo G570 (Model Name: 20079).
    Where can I find linux drivers for my laptop?
    Does lenovo support provides that to download?
    Sincerely,
    Srinivas Nayak

    Hello snayak
    Do not worry about Linux drivers for your laptop. All needed drivers for most of the machines are on the Linux kernel. Most hardware are recognized by latest kernel. So all you have to do is install your distro and enjoy Linux.
    The best way to check if all hardware are recognized is booting up a distro in live mode and test the hardware.
    You can make a test with Linux Mint, and install their new and amazing DE called Cinnamon. I'm sure you will enjoy it.
    Regards
    abvasili
    I'm just a volunteer. I like to help others where I can. Do my ideas work? I hope so. o_O
    Who helped you today? Do not forget to thank him.
    My hardware: TP x120e 0596-2ru. Windows 7, sp1, 64Bit, English, installed in UEFI mode.

  • Lenovo E540 video problems on Windows 8.1

    Hi,
    I've just recently bought a Lenovo ThinkPad Edge E540 with the following configuration:
    - i7-4702MQ(2.2GHz)
    - 4GB RAM
    - 500GB 7200rpm HD
    - 15.6in 1920x1080 LCD
    - 2GB NVIDIA N14P-GV2
    - CDRW/DVDRW
    - Intel 802.11bgn wireless
    - 1Gb Ethernet, UltraNav
    - Secure Chip
    - Fingerprint reader
    - Camera
    - 6c Li-Ion
    - Dos license
    The first thing i did was to install Windows 8.1, as it seems that it's the preffered OS for this laptop.
    After this, i've installed all the drivers from the Lenovo Support site and all the programs that i normally use.
    This is when everything went wrong.
    In Photoshop CS6 i cannot zoom in and out, the image always stays the same. Only if i minimize and maximize Photoshop does the program refresh the image at the selected zoom level.
    In Sketchup the same problem, if i try to rotate or pan the image, nothing happens. After minimize/maximize, the image is refreshed.
    After a small research, i've discovered that i can change the prefferd video adapter from the Nvidia Control Panel.
    Everything was set to Intel HD4600 so i changed all the mentioned programs to GeForce 740M.
    This didn't solve the problem, but changed it. In Photoshop for example, this time the canvas doesn't appear at all.
    So, a little research later and i found out that by disabling the hardware acceleration in each program, they started working.
    This works on either of the video adapters, it doesn't matter which one is selected in the Nvidia Control Panel.
    So i thought that i had it figured out, even though a new laptop isn't supposed to work like this, bypassing hardware acceleration in almot all programs
    But the problem appeared in Microsoft Office:
    In Microsoft Word, i can't change the text color. 
    In Microsoft Powerpoint, i can't change the background color.
    Even if i disable the hardware acceleration, the problem is still there.
    Finally i decides that maybe the operating system has an incompatibility with the drivers, so i formatted all and installed an older Windows 7 that i had.
    Everything installed from scratch, drivers and programs.
    This time all the programs worked (Photoshop CS5, Sketchup 8, Word and Powerpoint 2010) from the start, without disabling the hardware acceleration.
    But the next day, when i wanted to use Powerpoint, the problem came back. The background color doesn't change, and in Word i can't change text color. Even if i disable the hardware acceleration.
    So i'm back at the beginning.
    I've honestly thought of returning the laptop, as it's the first one with which i've had all these endless problems.
    Unfortunately, the store's 30-days back guarantee have passed, almost all of them trying to make it work as it should.
    If anyone has any idea about this or has confronted any of these problems, please tell, i just don't know what else to do, the laptop is currently useless.
    Thank you for yout patience to read all this.

    I am also having this problem. Cannot click either button. Really hope someone can shed some light here.

  • Can't Access Oracle EBS with a Lenovo X201 laptop

    My Company runs Oracle E-Business Suite version 11.5.10.2. I recently had to get a new laptop (Lenovo X201). I can log onto the Oracle Application Home Page and select a responsibility, but when I select an operation, like Invoice Inquiry in the Payables Module for instance, I get the following message, "This tab has been recovered. A problem with this web page has caused Internet Explorer to close and reopen the tab." The laptop is running the XP operating system and Internet Explorer 8.0.6001.18702. Our IT staff can't figure out the problem. They looked at all the usual cause for problems, like pop-up blockers, etc. They also spoke to Lenovo Support without finding a resolution. We experienced a similar problem with Dell laptops that they were able to resolve. Has anyone experienced this problem with a recent-vintage Lenovo computer and found a solution?

    Can you find any details about the error in Apache log files and/or Sun JRE Console Window?
    If the issue is reproducible, please make sure you meet the minimum requirements as per these docs.
    Recommended Browsers for Oracle E-Business Suite 11i [ID 285218.1]
    IE8 AND R12 SECURITY SETTING REQUIREMENT ON CROSS SITE SCRIPTING (XSS) [ID 1069497.1]
    Thanks,
    Hussein

  • Lenovo G550 Recovery Problem

    Hi ,
    I have Lenovo G550 and it crashed. When i used recovery discs .. i got some problem saying" Cant read from the device". So I turned it off and tried with another set of receovery discs i have made. But Now it is saying " Insuffient space and not highlighting patitions in the receovery process step 1. It shouws the partitions but not highlighted. I tried several times.But the same problem. How Can I solve this problem and get recovery done.  As I bought this laptop in India and using in UK. I can not call customer service now. Could any one of you please help me. Do I need to do partition again and try recovery or Is there any simpler way. I can not buy expensive partition software. If Partition is mandatory which partitions should i make and in which format?
    My Lap Details:
    15.4inch Lenovo G550 with 320GB and Windows 7 Home Premium and the processor is Core 2 Duo.
    Please help  me
    Thank you,
    Renuka

    it could be because of you re-partitioned the volume. warranty may cover the issue if you have valid one ( international warranty - iws - )
    try to burn default backup before ordering dvd sets.
    you can order recovery discs. call lenovo support line.
    check your warranty from the link below:
    http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=look-iws
    if it doesn't work, you can use this software to find your serial.
    http://download.cnet.com/Keyfinder-Thing/3000-2094_4-10491989.html?tag=mncol;5

  • System Update 4 won't install on W500/Win 7. (Lenovo Support unhelpful and have stopped responding).

    Hello Forum,
    I am trying to solve a problem I have trying to install System Update 4.0 onto a Thinkpad W500 running Windows 7.
    I did have System Update 3.14 running a while ago and was told to update to 4.0 but to date I have not been able to install this. Version 3.14 was uninstalled successfully and a reboot was done before the install attempt. Version 4.0 starts to install and then comes up with an error message.
    Lenovo Support were contacted via email and the only suggestion that was given was to completely format the laptop and re-install Windows Vista from the Lenovo disks, (they did at least supply these). This I find an unacceptable solution to the problem as version 4.0 is for Windows 7 only and therefore negate this, but the major issue is I want to fix this issue, not downgrade the whole OS.
    The error message reads; "Windows cannot find 'C:\Users\*******\AppData\Local\Temp\pftD377.tmp\setup\psainst.exe'. Make sure you typed the name correctly, and then try again."
    They have not contacted me since the 13th July, even though I replied to their message on the 13th, and again on the 22nd July.
    If anyone knows how I can escalate this within Lenovo I would appreciate the information.
    Apologies if this is the forum or thread for this, but as Lenovo are so unresponsive, they left me no option (and I haven't resorted to bad language and abuse hurling).
    Many thanks all.

    If you can take the pain, you could try kenningar's solution at the bottom of this page.  Might help.
    Re: System Update 4.0.0046 install fails on Windows 7 SP1
    Z.
    The large print: please read the Community Participation Rules before posting. Include as much information as possible: model, machine type, operating system, and a descriptive subject line. Do not include personal information: serial number, telephone number, email address, etc.  The fine print: I do not work for, nor do I speak for Lenovo. Unsolicited private messages will be ignored. ... GeezBlog
    English Community   Deutsche Community   Comunidad en Español   Русскоязычное Сообщество

  • Lenovo support site, warranty lookup and warranty service unavailable for 72 hours?

    Hello, I've got a newly purchased Lenovo Yoga 2 13 with a confirmed hardware issue. I'd like to take advantage of the on-site support I purchased and it appears that's currently impossible. Here are the issues I've encountered.
    I began at the Lenovo Support site: http://support.lenovo.com/us/en/
    I tried the Check Warranty Status tool ( http://support.lenovo.com/us/en/warrantylookup ) just to verify my new laptop and warranty are accurately listed in Lenovo's systems. No luck, the form has been returning a "Service Busy" error for the past hour.
    I then tried to submit an Online Service Request ( http://support.lenovo.com/us/en/submitrequestonline ) to schedule the repair. Again, no luck. The page is broken and has no form or links on it (see below). Same result in multiple browsers over the past hour.
    I finally called Lenovo technical support. Doing that was difficult because the support phone number is not listed anywhere visible on the Lenovo Support site - I had to find it through the FAQ here in the forum. The phone rep asked me some questions and then suggested I work with the vendor where I purchased the laptop. But it was purchased from Lenovo.com, so this is Lenovo's problem. The rep then informed me that the Lenovo technical support system is "being upgraded" and will be unavailable for the next 72 hours until Tuesday 8/12. I was unable to get a case number and will need to call back or submit a new request online (when and if the online form is repaired).
    A next-day, on-site warranty is kind of pointless of it takes 2 business days before you can even request service. Not a good first impression, Lenovo. How about acknowledging the "system upgrade" on the support site or forum so customers know what's going on?

    Does anyone know of any other options, or do I need to send my phone back to a service centre in Australia?
    For a warranty claim, there is no other option.

  • Mic issue with Lenovo G710 laptop

    I have a laptop Lenovo G710 which i have upgraded to Windows 10. The laptop has an inbuilt microphone.I'm going through the setup process with Cortana but my voice isn't being detected when getting Cortana to learn my voice.I have done following to try and fix it but it hasn't yet worked:
    I checked in Device Manager and looked for Microphone(IDT High Definition Audio Codec) and it says Device is working properly when i go to the properties of it.The latest driver was installed 09/07/2015.
    Secondly, I have tested the inbuilt microphone out by going into Control Panel, then going to Speech Recognition then click on Audio Devices and making sure that the microphone is enabled.
    I then right clicked on it  Properties went to the Levels tab and increased the  Microphone level to 100. Microphone boost is set to the max level. If anyone can help me to fix this issue, it would be much appreciated.Kind Regards,

    Hey there,
    I've been having the same problem for a long time now, seems like the IDT drivers for this model are fu**ed up somehow. No one ever responded to my problems. Don't expect anyone having a magical solution to this, unless someone from the Lenovo support really decides to dig deep. The newest driver is absolutely incompatible with Windows 10, even though it says it is. The mic works "fine" when listening to it through the recording devices properties, but never have I been able to make it work with Cortana, neither Skype! To temporarily solve this problem, until MAYBE a solution will come, I advise you to open Device Manager, and under Sound, video and game controllers, click right on the IDT High Definition Audio Codec, Properties, Driver, Update Driver, Browse my computer for driver software, Let me pick from a list, and select High Definition Audio Device. Your sound will sound worse, after some restarts it will maybe even go almost mute (at 100% volume set EVERYWHERE application-wise, windows-wise it will sound like 30%, 40% before), but at least the microphone will work service-ably with Cortana or Skype.
    Guys could any of the official support REALLY take a look at this problem? Seems that not just me has it. This is a serious issue to solve. Thanks! (whistles in the wind, becomes forgotten in a few days)

  • Battery dead within 10 days of use. Lenovo G580 Laptop

    Recently I bought a new Lenovo G580 Laptop in the Emirates and after using it for 10 days, the battery got dead. I never used the laptop while it was on the charging mode and took complete care as it is brand new. Also used to charge it once in a couple of days. It is a disappointed since its a brand new machine. Anyone also facing this problem?

    @manay,
    Try removing the AC and battery then hold power button for 3 seconds, repeat this 3 times then put the AC and battery back and see if it helps.
    Also try leaving the AC on and charge the laptop for the night. If problem persist then contact support to get the hardware checked.
    *Non Lenovo employee*
    I have a Y2P (i5) ... Feel free to ping me if you want me to test some applications with your Y2P if you have the same model. I don't mind keep doing recovery on it if needed .... =)

  • Detection Error 2100 - M500 SSD in Lenovo X240 laptop

    I have a new Lenovo X240 out of the box.  I immediately upgraded with a Crucial M500 SSD 240mb drive.  The computer is running a fresh install of Windows 7 64-bit. The BIOS on the laptop is the most current.  The firmware on the M500 is the most current.  It seems that every several times I start or reboot the system I receive "DETECTION ERROR 2100".  After powering off the machine and powering it on again the computer will boot to Winddows. I have seen numerous posts about this issue between Crucial vs. Lenovo.  I've tried every suggested fix to no avail.  I have tried the configuration using an identical, brand new M500 SSD with the same results.  Am I missing something?
    Thanks in advance for your suggestions,.

    Hello mrtree and welcome to the Crucial forum. I spotted your post yesterday and spent some time Googling for info from the Lenovo support forum last night. I found several things you are probably aware of. First, this Detection Error 2100 is not limited to just the X240 series laptops, there are quite a few other models affected in the same way. Second, it is not limited to only Crucial SSDs, there are people with Samsungs, Toshibas, Intels, and even conventional drives that have experienced this same problem at system boot. These two observations indicate to me that problem is probably related to BIOS/firmware/driver issues. Since you have stated that you already installed the latest BIOS(v. 2.23?) and firmware(chipset v. 9.5.22.1760?), that leaves one area: drivers. From what I can see, the latest Intel RST drivers available are version 12.8.10.1005, dated 1/26/2014. Please be aware that there are seperate downloads for 32 and 64 bit systems. There is also a Solid State Drive Firmware Update Utility listed, but I do not recommend using it since Crucial M500s are not listed in the "Read Me" notes. Which brings up the question of SSD firmware, do you have the MU03 or MU05 firmware installed on your Crucial SSDs? Also, just to double check, do you have AHCI mode enabled in your BIOS settings? You'd be surprised at how many people overlook this. I suppose that Lenovo will get around to releasing updated software addressing this issue, as they have for the other brands of SSD drives, it's just a question of when. Edit: Two more things I thought of after my initail post. First, did you order your M500 directly from Crucial? When I ordered the M500 for my Lenovo T400 Thinkpad, I went to the website and used the advisor to find the M500 part number for my machine. I called to order several days later, and when I gave the part number to the customer representative, she immediately replied "that's for a Lenovo T400, correct?". That tells me there is a part number that is specific to the T400 series, and this may also be the case with the X240 series. Ordering from an online retailer or purchasing the M500 from a store may not have given you the correct part. Second, does your machine have Intel's Management Engine firmware installed, and do you have it enabled? Try entering BIOS and disabling it, just to see if this problem persists. I've noticed that on my T400, when I boot from the DVD drive or a USB stick, I see a brief warning message from the Management Engine stating that I'm not using the normal boot device, but then my machine boots regardless. Perhaps it's causing some sort of grief for your machine.

  • Terrible Lenovo Support

    I purchased an Ideabook U410 laptop “manufacturer refurbished with Lenovo warranty” in April 2013.  Six months later it stopped working.  The computer will not load Windows 7 (it sits at the Windows 7 start up screen), start up repair doesn't work, starting in "last known good configuration" doesn't work, it will not start in safe mode, etc.
    The computer won’t boot off the “Factory Default Recovery Disks.” Seems clearly to be a hard drive problem.
    The worst part however is the treatment received from Lenovo support.  They said I had to buy another set of recovery disks from them for $89 and to try to boot from those disks before I could even deal with hardware support.
    Paid for the disks on October 17th and was told they should arrive within 5 days (by October 22nd).
    In the meantime Lenovo support promised a tech would call me to discuss the problem and my concerns that it was really a hard drive problem.  Three times Lenovo support promised me a call, and three times no one called.  I sat at home waiting a day and a half for nothing.
    It only got worse after that.  Called Lenovo support on October 22nd to ask why the disks hadn’t arrived, and was told, first, that I hadn’t ordered them.  Next, when I referred to my credit card confirmation of the charge, and Lenovo’s confirmation code, the supervisor at Lenovo support finally told me their tech forgot to put in the order (even though they confirmed he charged my credit card at the time.)
    To make matters worse, the supervisor said neither he nor anyone at Lenovo support was authorized to expedite the shipment they had admittedly failed to make when the disks were ordered.
    In contrast, and by coincidence, I had a problem with my Dell desktop.  I called them and the part was delivered in one day, I was up and running in less than 48 hours, and I’m in Honolulu

    I can't say I've experienced the same Lenovo support, but I have opted to NOT use the Lenovo support method of restoring my Z565 once I replace the hard drive. I know, I know, I can create backups from the drive... except for the fact that it won't run long enough to do that.
    1. I was told that I cannot use a drive over 500GB... No reason was offered, the support person I was speaking with just couldn't find a reason on her flash cards. I want to install a 1TB and see no reason why it shouldn't be possible.
    2. Not impressed with the support person's apparent inability to offer replacement OS discs without the additional Lenovo required support. I am absolutley NOT a fan of not having driver/OS discs for the eventual death of a hard drive and lacking the ability to restore the machine without extrordinary measures using another computer to go online and get the drivers, copy to a thumb drive, ect... Just give me the darn discs.
    3. They apparently do not keep good records. I was repeatedly told I have a 250GB HDD, I KNOW I have a 320GB drive. Considering they were referencing information from my serial number, one would think they should know what drive they put in it.
    While I would like to maintain the OKR and recovery partitions, I'm willing to give them up.
    In a similar fashion, I have a Dell M710 that had a similar drive failure, but after 5 years of ownership and no extended warranty. They were willing to send the OS recovery discs for the cost of shipping (under $5)
    Think my next laptop purchase will be a Lenovo?
    I Series 1200 - 2 / Transnote - 1 / 600E's - 8 / 600X - 2 / A21e -2 / T21 - 1 / T30 - 1 / T60 - 2 / Z565 - 1 and more models from various manufacturers than there is space to list.

  • G580 Lenovo Support Center - Device Manager - Unknown device

    Hi Team,
    Recently I have Updated my Laptop from Windows 8 to Windows 8.1 single language pack.
    Once Installation is completed, I faced problem in starting Dolby Audio driver, I have installed the latest driver and it got resolved.
    Next came the problem in Bluetooth device in accepting files from my mobile, then done the same. Installed latest driver and it too got resolved. But still i am facing the message "Unknown device" in Lenovo Support Center in Device Manager.
    I have checked in Device Manager. But no device is indicated in yellow color.
    Please let me know, how to identify which device is causing this problem and how to rectify this.
    My Laptop details:
    Model : G580
    Product ID : 20150
    Let me know if you want more details.
    Thanks,
    Sathish Kumar

    Hi Yigit,
    As I have already mentioned, I didn't find any device which is indicated as Unknown in Device Management.
    I have shared the Images for your better understanding. It is only displayed in Lenovo Support Center alone.
    link to image
    link to image
    link to image
    link to image
    Thanks,
    Sathish Kumar

Maybe you are looking for