Windows-11 Possible MCAfee Problem


ariespaan

Active member
Local time
9:52 AM
Posts
51
OS
windows 11
Hi,

I am using Windows-11 (Version 22H..) and I use McAfee LiveSafe.
For some days now i get suddenly often an error message (see attachment) with the following text:

MC-WNS-Client.exe This application could not be started
MSIX Package version: 3000.851.1712.0
Do you want to install a compatible windows app runtime now?

Entering Yes or Now does not change anything, the message is always coming back

I think it is a McAfee-problem, caused by an software-update from McAfee recently

Does anyone know, how to solve this problem, because the error is coming back every day some times.

Thanks for all advises
 

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My Computer

System One

  • OS
    windows 11
Do you have McAfee installed and are you normally using it? I've seen a few computers that get McAfee installed quietly and usually when using Face Book, it's a Web Security app and can be difficult to remove all traces.
 

My Computers

System One System Two

  • OS
    Win11 Pro RTM Version 24H2 Build 26100.4202
    Computer type
    Laptop
    Manufacturer/Model
    Dell Vostro 3400
    CPU
    Intel Core i5 11th Gen. 2.40GHz
    Memory
    12GB
    Hard Drives
    256GB SSD NVMe M.2
  • Operating System
    Win11 Pro RTM Version 24H2 Build 26100.4202
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Vostro 5890
    CPU
    Intel Core i5 10th Gen. 2.90GHz
    Memory
    16GB
    Graphics card(s)
    Onboard, no VGA, using a DisplayPort-to-VGA adapter
    Monitor(s) Displays
    24" Dell
    Hard Drives
    512GB SSD NVMe, 4TB Seagate HDD
    Browser
    Firefox, Edge
    Antivirus
    Windows Defender/Microsoft Security
Hi,

I am using Windows-11 (Version 22H..) and I use McAfee LiveSafe.
For some days now i get suddenly often an error message (see attachment) with the following text:

MC-WNS-Client.exe This application could not be started
MSIX Package version: 3000.851.1712.0
Do you want to install a compatible windows app runtime now?

Entering Yes or Now does not change anything, the message is always coming back

I think it is a McAfee-problem, caused by an software-update from McAfee recently

Does anyone know, how to solve this problem, because the error is coming back every day some times.

Thanks for all advises
Hi @ariespaan ,

From MS answers:

"Hi I had this issue and it is a McAfee problem. I contacted them via their chat facility. It is a global problem they said. The technician told me to fix it I needed to uninstall McAfee and then reinstall it. I uninstalled using the usual Windows uninstall app method. To reinstall I logged into my McAfee account and followed the instructions to install.
The pop-up should then go away."
 

My Computers

System One System Two

  • OS
    Windows 11 Pro/All Channels
    Computer type
    Laptop
    Manufacturer/Model
    Acer Nitro ANV15-51
    CPU
    AMD Ryzen 7 7735HS 3200-4500 Mhz 8 cores x 2
    Motherboard
    Sportage_RBH
    Memory
    32 GB DDR5
    Graphics Card(s)
    Radeon Graphic / NVIDIA GeForce RTX 4060 8 GB GDDR6
    Sound Card
    AMD/Realtek(R) Audio
    Monitor(s) Displays
    Integrated Monitor (15.3"vis)
    Screen Resolution
    FHD 1920X1080 16:9 144Hz
    Hard Drives
    Kingston OM8SEP4512Q 500 GB
    WDS500G2B0A-00SM50 500.1 GB
    PSU
    19V DC 6.32 A 120 W
    Cooling
    Dual Fans
    Mouse
    MS Bluetooth
    Internet Speed
    Fiber 1GB Cox -us & IGB Orange-fr
    Browser
    Edge Canary- Firefox Nightly-Chrome Dev-Chrome Dev
    Antivirus
    Windows Defender
    Other Info
    VMs of Windows 11 stable/Beta/Dev/Canary
    VM of XeroLinux- Arch based & Debian 13 (Trixie)
  • Operating System
    Windows 11 Insider Canary
    Computer type
    Laptop
    Manufacturer/Model
    ASUS X751BP
    CPU
    AMD Dual Core A6-9220
    Motherboard
    ASUS
    Memory
    8 GB
    Graphics card(s)
    AMD Radeon R5 M420
    Sound Card
    Realtek
    Monitor(s) Displays
    17.3
    Screen Resolution
    1600X900 16:9
    Hard Drives
    1TB 5400RPM
Anything using McAfee (or Mc Aweful) is going to be a problem. Why any of these C20 3rd party A/V vendors get any traction in the domestic market in C21 (not commercial or enterprise stuff -- another ballgame) just beggars belief.

WD today on W11 (pity given the past history on WD on W7 etc the name was unfortunate) which is based on Ms's Azure cloud service security --military strength and one of the best around today -there's NO NEED to install any of these old C20 type of things attempting to solve a problem that really no longer exists on HOME domestic computers.

Scams etc are far more of a problem. Windows Domestic users just leave WD to do its thing - it's a zillion times better than anything else for the "Mom and Pop" home domestic computer systems.

Cheers
jimbo
 

My Computer

System One

  • OS
    Windows XP,10,11 Linux (Fedora 42&43 pre-release,Arch Linux)
    Computer type
    PC/Desktop
    CPU
    2 X Intel i7
    Screen Resolution
    4KUHD X 2
It's a matter of opinion, but I tend to agree that third party apps, from my experience especially Norton and McAfee , seem to cause issues of one kind or another. One issue being, they are resource hogs. If one is going to pay for such an app, I always recommend Malwarebytes Premium which runs happily alongside Windows Defender in realtime without a blip. I've used the 2-step solution of MWB and Defender for years and feel I'm as protected as I can be in my security choice.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 24H2 26100.4652
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 7080
    CPU
    i9-10900 10 core 20 threads
    Motherboard
    DELL 0J37VM
    Memory
    32 gb
    Graphics Card(s)
    none-Intel UHD Graphics 630
    Sound Card
    Integrated Realtek
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    2x1tb Solidigm m.2 nvme /External drives 512gb Samsung m.2 sata+2tb Kingston m2.nvme
    PSU
    500w
    Case
    MT
    Cooling
    Dell Premium
    Keyboard
    Logitech wired
    Mouse
    Logitech wireless
    Internet Speed
    so slow I'm too embarrassed to tell
    Browser
    #1 Edge #2 Firefox
    Antivirus
    Defender+MWB Premium
  • Operating System
    Windows 11 Pro 24H2 26100.4061
    Computer type
    PC/Desktop
    Manufacturer/Model
    Beelink Mini PC SER5
    CPU
    AMD Ryzen 7 6800U
    Memory
    32 gb
    Graphics card(s)
    integrated
    Sound Card
    integrated
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Crucial nvme
    Keyboard
    Logitech wired
    Mouse
    Logitech wireless
    Internet Speed
    still too embarrassed to tell
    Browser
    Firefox
    Antivirus
    Defender
    Other Info
    System 3 is non compliant Dell 9020 i7-4770/24gb ram Win11 PRO 26100.4061
@ariespaan .......... i totally agree with what @jimbo45 has said ! All you need is Windows Defender as an antivirus. All the others in my opinion after cleaning computers of junk, virus & Trojans for 25 yrs ! I can go into the registry & clean McAfee all out ! Most people just use the McAfee uninstaller >> Download McAfee Consumer Products Removal tool << !!
 

My Computer

System One

  • OS
    Windows11 23H2 (OS Build 22631.2428)
    Computer type
    PC/Desktop
    Manufacturer/Model
    HP HP ENVY TE01
    CPU
    2.90 gigahertz Intel Core i7-10700
    Motherboard
    Board: HP 8767 A (SMVB)
    Memory
    16214 Megabytes Usable Installed Memor
    Hard Drives
    1511.52 Gigabytes Usable Hard Drive Capacity
    1418.15 Gigabytes Hard Drive Free Space
    Keyboard
    Logitech wireless
    Mouse
    M 185 wireless
    Internet Speed
    12 ms Jitter 8 ms Download 10.5 Mbps Upload 1.7
    Browser
    Edge & FF
    Antivirus
    Windows Defender
I have still a last question, about it.
When i remove McAfee (as stated in post #6) and using the McAfee Consumer Products Removing Tool,, will Windows (after a new Reboot) automatically start with the standard Windows-defender and Windows Firewall?
I mean: Do i have to do some more actions or is that all?
Thanks already
 

My Computer

System One

  • OS
    windows 11
It's been a while but I seem to remember you will get a popup notification that security is turned off.
Open settings>privacy & security>select 'Open Windows Security' button.
The first 5 items should have a green check mark.
Select any area of security that is checked in red and it will take you to the section where that security area is managed. Switch it's setting to ON.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 24H2 26100.4652
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 7080
    CPU
    i9-10900 10 core 20 threads
    Motherboard
    DELL 0J37VM
    Memory
    32 gb
    Graphics Card(s)
    none-Intel UHD Graphics 630
    Sound Card
    Integrated Realtek
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    2x1tb Solidigm m.2 nvme /External drives 512gb Samsung m.2 sata+2tb Kingston m2.nvme
    PSU
    500w
    Case
    MT
    Cooling
    Dell Premium
    Keyboard
    Logitech wired
    Mouse
    Logitech wireless
    Internet Speed
    so slow I'm too embarrassed to tell
    Browser
    #1 Edge #2 Firefox
    Antivirus
    Defender+MWB Premium
  • Operating System
    Windows 11 Pro 24H2 26100.4061
    Computer type
    PC/Desktop
    Manufacturer/Model
    Beelink Mini PC SER5
    CPU
    AMD Ryzen 7 6800U
    Memory
    32 gb
    Graphics card(s)
    integrated
    Sound Card
    integrated
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Crucial nvme
    Keyboard
    Logitech wired
    Mouse
    Logitech wireless
    Internet Speed
    still too embarrassed to tell
    Browser
    Firefox
    Antivirus
    Defender
    Other Info
    System 3 is non compliant Dell 9020 i7-4770/24gb ram Win11 PRO 26100.4061
Usually Microsoft Security/Windows Defender will be active after removal of a third-party program but easily checked in the Notification Area.
 

My Computers

System One System Two

  • OS
    Win11 Pro RTM Version 24H2 Build 26100.4202
    Computer type
    Laptop
    Manufacturer/Model
    Dell Vostro 3400
    CPU
    Intel Core i5 11th Gen. 2.40GHz
    Memory
    12GB
    Hard Drives
    256GB SSD NVMe M.2
  • Operating System
    Win11 Pro RTM Version 24H2 Build 26100.4202
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Vostro 5890
    CPU
    Intel Core i5 10th Gen. 2.90GHz
    Memory
    16GB
    Graphics card(s)
    Onboard, no VGA, using a DisplayPort-to-VGA adapter
    Monitor(s) Displays
    24" Dell
    Hard Drives
    512GB SSD NVMe, 4TB Seagate HDD
    Browser
    Firefox, Edge
    Antivirus
    Windows Defender/Microsoft Security
Open "Settings" scroll down to "Privacy & Security" click "Windows Security" ........... open "Windows Security" it should say "No Action Needed" if it's turned on !
 

My Computer

System One

  • OS
    Windows11 23H2 (OS Build 22631.2428)
    Computer type
    PC/Desktop
    Manufacturer/Model
    HP HP ENVY TE01
    CPU
    2.90 gigahertz Intel Core i7-10700
    Motherboard
    Board: HP 8767 A (SMVB)
    Memory
    16214 Megabytes Usable Installed Memor
    Hard Drives
    1511.52 Gigabytes Usable Hard Drive Capacity
    1418.15 Gigabytes Hard Drive Free Space
    Keyboard
    Logitech wireless
    Mouse
    M 185 wireless
    Internet Speed
    12 ms Jitter 8 ms Download 10.5 Mbps Upload 1.7
    Browser
    Edge & FF
    Antivirus
    Windows Defender

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