ACER Aspire 5 - A514-54 - KMODE_EXCEPTION_NOT_HANDLED BSOD

abhijitpatil
abhijitpatil Member Posts: 5

Tinkerer

Info: Bought and upgraded OS to Win 11, RAM to 12GB and NVME SSD of 250 GB about 6 months ago.
Issue: Getting BSOD from yesterday. KMODE_EXCEPTION_NOT_HANDLED nothing else in error.
Observation: Getting disconnected from internet and in Device Manager - found WLAN driver showing yellow exclamation mark exact before BSOD every time.(Now connected to LAN and WLAN driver removed, will update after a day on this)
Already done below steps:
1. Avast antivirus removed.
2. Windows antivirus disabled.
3. Fast boot disabled in both OS and BIOS.
4. All other softwares removed.
5. BIOS updated
6. Drivers updated.
7. OS updated.
8. Chrome removed(as each time this is only software I was using when BSOD shows)
9. CHKDSK, SFC /SCANNOW and RAM diagnostics done.
10. Lastly clean installed Win11 OS and updated.
11. After clean OS installation drivers installed from Acer Drivers link.

Still facing issue. 

Thanks in advance.

Answers

  • JackE
    JackE ACE Posts: 45,176 Trailblazer
    >>>  upgraded OS to Win 11, RAM to 12GB>>>

    Remove the new RAM and test the system with the original RAM configuration.

    Jack E/NJ

  • abhijitpatil
    abhijitpatil Member Posts: 5

    Tinkerer

    Actually laptop is in warranty and do not want void it by removing RAM on my own, I'm considering visit to service center as last option. As they will keep laptop for days to resolve issue.
    By the way thanks for response.
  • JackE
    JackE ACE Posts: 45,176 Trailblazer
    >>>ought and upgraded OS to Win 11, RAM to 12GB and NVME SSD of 250 GB about 6 months ago.>>>

    Does this mean you did not do the upgrades yourself?

    Jack E/NJ

  • abhijitpatil
    abhijitpatil Member Posts: 5

    Tinkerer

    Yes, because I mailed acer support for upgrade and they said upgrade should be done in acer authorised service centre only.

    Update on issue : had uninstalled WLAN driver and it is working fine. Just for test I had installed again and BSOD occurred immediately.
    What's your thoughts on this. Is it only driver issue or hardware (IC chip / wifi card) issue.
    I had downloaded drivers from acer drivers website. 
    MediTek wifi 6 MT7921 is hardware of wifi.
  • JackE
    JackE ACE Posts: 45,176 Trailblazer
    >>>found WLAN driver showing yellow exclamation mark exact before BSOD every time>>>MediTek wifi 6 MT7921 is hardware of wifi. >>>

    Yes, there have been other reports of problems with this particular card. I suggest that you download and install iobit's Driver Booster freeware to see if it can pick up any better drivers on line. If you still get the BSODs, I think you should arrange for warranty repair.

    Jack E/NJ

  • abhijitpatil
    abhijitpatil Member Posts: 5

    Tinkerer

    Thank you, will try once with iobit driver booster otherwise visit service centre for.
  • abhijitpatil
    abhijitpatil Member Posts: 5

    Tinkerer

    edited April 2022
    Hello Jack,
    Sorry for late reply.
    Thanks for the help. I had downloaded and installed IOBit driver booster and it showed that faulty driver has installed. Clicked on it, downloaded new driver and it worked.
    You saved me from visiting service centre.
    Thanks once again.
  • JackE
    JackE ACE Posts: 45,176 Trailblazer
    Congrats on your success. Thanks for reporting back.

    Jack E/NJ