Windows 10: KB4549951 Cause BT adaptor loss and slow PC to a crawl

Discus and support KB4549951 Cause BT adaptor loss and slow PC to a crawl in Windows 10 Installation and Upgrade to solve the problem; I have always been a fan of windows update but this one is the nail in the coffin for now. Please get this sorted. Below are the details of my... Discussion in 'Windows 10 Installation and Upgrade' started by Ash_2020, May 12, 2020.

  1. Ash_2020 Win User

    KB4549951 Cause BT adaptor loss and slow PC to a crawl


    I have always been a fan of windows update but this one is the nail in the coffin for now. Please get this sorted.


    Below are the details of my system:

    System Manufacturer: Dell Inc.
    System Model: Inspiron 5570
    BIOS: 1.2.5 type: UEFI
    Processor: IntelR CoreTM i7-8550U CPU @ 1.80GHz 8 CPUs, ~2.0GHz
    Memory: 16384MB RAM

    Available OS Memory: 16282MB RAM


    Bluetooth QualcommQCA9377

    :)
     
    Ash_2020, May 12, 2020
    #1

  2. KB4549951 causing issues

    Ever since KB4549951 was installed on my Win 10, my internet speed has slowed to a crawl.

    It even causes programs to freeze

    I am about ready to remove it. What's the story?
     
    FredMcDonald, May 12, 2020
    #2
  3. KB4549951 causing issues

    On one of my Win 10 laptops, post the update (KB4549951), I discovered there was no internet connection.

    The laptop was connected to my router on WiFi, but there was no internet connectivity. [Other machines were working fine].

    I discovered that the IPv4 settings (static IP, DNS Server, Gateway) on the updated laptop had been wiped clean.

    Setting these details correctly immediately fixed my problem immediately.

    In case, this helps someone!
     
    BlueBaron(2), May 12, 2020
    #3
  4. KB4549951 Cause BT adaptor loss and slow PC to a crawl

    why does Build 10565 iso slow my PC to a crawl??

    build **52 was lightning fast, new build 10565 has slowed my PC to a CRAWL (that even is an exageration)
     
    AndrewSallee, May 12, 2020
    #4
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KB4549951 Cause BT adaptor loss and slow PC to a crawl

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