Solved How to exclude Drives in Windows Defender


john1955

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Tried searching Google for the answer and struck out . . .
Just how can I exclude scanning my backup drive from windows defender in Win-11 Pro 25H2

I logged in to do something and Windows defender just started hammering me with potentially unwanted programs that I knew were not dangerous and it was such a distraction I forgot what I actually wanted to do. I have multiple backups and it wants me to make a decision about every one of them. I dont know why it ran this morning and never scanned that drive before now.
 

My Computers

System One System Two

  • OS
    Windows 11 (up to date)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom
    CPU
    Intel i5 12400
    Motherboard
    Gigabyte Z690 UA
    Memory
    Corsair Vengeance LPX 16GB
    Graphics Card(s)
    On Board the Z690
    Sound Card
    On Board
    Monitor(s) Displays
    43" Samsung tu7000
    Screen Resolution
    2560 x 1440
    Hard Drives
    SAMSUNG SSD 1TB NVMe M.2
    PSU
    Thermaltake smart 500w 80+
    Case
    LIAN LANCOOL_205M
    Cooling
    Bunch of fans . . . :o) (lights dont work)
    Keyboard
    Unicomp: Ultra Classic White Buckling Spring USB
    Mouse
    M510
    Internet Speed
    50mbps on Ethernet
    Browser
    Fire Fox
    Antivirus
    Windows
    Other Info
    Love this computer but I still prefer Win-7 like I love my old Lazy Boy Recliner . . . it just feels better.
  • Operating System
    WIN-7-64BIT and Win-11 pro for testing on unsupported hardware
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home built
    CPU
    i5-3570K CPU @ 3.40GHz, 3801 Mhz, 4 Core(s), 4 Logical Processor(s)
    Motherboard
    GA-Z77-HD3
    Memory
    16 GB - Crucial Ballistick 4GB PC3-14900 DDR3-1333 MHz
    Graphics card(s)
    NVIDIA GeForce GTX 1050
    Sound Card
    On Board
    Monitor(s) Displays
    ASUS VP278
    Screen Resolution
    1920 x 1080
    Hard Drives
    4 - internal Samsung 2.5" SSD, 1 WD HDD 7200 and some external drives
    PSU
    EVGA 550w
    Case
    Old Gygabyte Tower
    Cooling
    Yes
    Keyboard
    Unicomp - UNIOP4A USB (like the old IBM Model H that I started with)
    Mouse
    M510
    Internet Speed
    50mbps
    Browser
    Firefox
    Antivirus
    Windows
    Other Info
    The only thing it lack is USB-3.2 on the front face but it has 3.0 on the back
The procedure for excluding folders [you'd specify the root folder of the drive concerned] is explained in the tutorial
Add or Remove Exclusions for Microsoft Defender - ElevenForumTutorials
When I add a folder exclusion, its subfolders are also covered. You might wish to ask Brink's opinion about that by posting in the tutorial thread because I can't find that aspect of its behaviour documented anywhere.


Denis



Welcome to ElevenForum.

It's really worth making time to browse through the ElevenForum Tutorial index - there's a shortcut to it at the top of every ElevenForum page [within the Tutorials dropdown list].
- At the foot of the ElevenForum Tutorial index is a shortcut to download it as a spreadsheet.
- I download a new copy each month.
- By downloading it as a spreadsheet I can benefit from Excel's excellent filtering capabilities when I search for topics of interest.
- ElevenForum tutorials are also listed at Tutorials and there's a shortcut to that at the top of every page.

You can search ElevenForum using the search box in the top-right corner of all ElevenForum webpages or using Advanced Search - ElevenForum
- You can also search ElevenForum threads in many general search engines, such as Google, by adding site:elevenforum.com after your search term. For example,
Taskbar setup site:elevenforum.com
- [This is what the search box in the top-right corner of ElevenForum webpages does automatically]
 
Last edited:

My Computer

System One

  • OS
    Windows 11 Home x64 Version 25H2 Build 26200.8037
When I add a folder exclusion, its subfolders are also covered
I've just double-checked that; subfolders are definitely covered.
For example,
- I excluded a folder which has subfolders containing files that WD used to object to [AV test files, dummy malware].
- I have definitely only excluded the parent folder.
- The dummy malware files are definitely in the subfolders not the parent folder.
- WD stopped bothering me about these test files when I excluded the parent folder.

@Brink - Perhaps you could add a statement about subfolders to the TF-EF exclusion tutorials.


Denis
 

My Computer

System One

  • OS
    Windows 11 Home x64 Version 25H2 Build 26200.8037
Thanks for the answer. Apparently listing a drive as a folder excludes the entire Drive.
I'll clear the history and run the scan again and report back if needed.

I see you moved this question/post . . . OK but I'm not sure I like that idea because I tend to scroll through the general category when I have time (like on rainy days and Mondays) to find answers to questions I did not know I needed but I'm never going to scroll through every category.

I did browse through the tutorials more than once but it's been over a year and I was just a little frustrated and this was not the time for browsing while Windows 11 was interrupting my workflow as Win Defender was throwing popups at me faster than I could respond too them. There ought to be a pause button.
 

My Computers

System One System Two

  • OS
    Windows 11 (up to date)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom
    CPU
    Intel i5 12400
    Motherboard
    Gigabyte Z690 UA
    Memory
    Corsair Vengeance LPX 16GB
    Graphics Card(s)
    On Board the Z690
    Sound Card
    On Board
    Monitor(s) Displays
    43" Samsung tu7000
    Screen Resolution
    2560 x 1440
    Hard Drives
    SAMSUNG SSD 1TB NVMe M.2
    PSU
    Thermaltake smart 500w 80+
    Case
    LIAN LANCOOL_205M
    Cooling
    Bunch of fans . . . :o) (lights dont work)
    Keyboard
    Unicomp: Ultra Classic White Buckling Spring USB
    Mouse
    M510
    Internet Speed
    50mbps on Ethernet
    Browser
    Fire Fox
    Antivirus
    Windows
    Other Info
    Love this computer but I still prefer Win-7 like I love my old Lazy Boy Recliner . . . it just feels better.
  • Operating System
    WIN-7-64BIT and Win-11 pro for testing on unsupported hardware
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home built
    CPU
    i5-3570K CPU @ 3.40GHz, 3801 Mhz, 4 Core(s), 4 Logical Processor(s)
    Motherboard
    GA-Z77-HD3
    Memory
    16 GB - Crucial Ballistick 4GB PC3-14900 DDR3-1333 MHz
    Graphics card(s)
    NVIDIA GeForce GTX 1050
    Sound Card
    On Board
    Monitor(s) Displays
    ASUS VP278
    Screen Resolution
    1920 x 1080
    Hard Drives
    4 - internal Samsung 2.5" SSD, 1 WD HDD 7200 and some external drives
    PSU
    EVGA 550w
    Case
    Old Gygabyte Tower
    Cooling
    Yes
    Keyboard
    Unicomp - UNIOP4A USB (like the old IBM Model H that I started with)
    Mouse
    M510
    Internet Speed
    50mbps
    Browser
    Firefox
    Antivirus
    Windows
    Other Info
    The only thing it lack is USB-3.2 on the front face but it has 3.0 on the back
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