Windows Defender won't let me add C:\Windows\Fonts as an exclusion...

  1. Posts : 23
    Windows 10 Home (April 2018 Update)
       07 Sep 2017 #1

    Windows Defender won't let me add C:\Windows\Fonts as an exclusion...

    Windows Defender is slowing my computer startup by scanning every single font I have installed (over 1000 of them), and it takes several minutes, during which my computer slows down considerably (takes 2 minutes for iTunes to start). I always scan my fonts with Defender and VirusTotal before I install them, so I want to add C:\Windows\Fonts to the exclusion list. I already tried Virus & Threat Protection Settings->Add an exclusion->Folder->type in "C:\Windows\Fonts", but it says this:

    The folder name is invalid.
    How do I get it to add? I've already tried %WinDir%\Fonts, but that comes up with the exact same error. What's keeping it from adding that folder? Is there some workaround to get it added?
      My ComputerSystem Spec

  2. Posts : 23
    Windows 10 Home (April 2018 Update)
    Thread Starter
       17 Sep 2017 #2

    Anyone? I want to increase my system performance as much as possible, and this crazy problem is preventing me from doing that. I tried adding in a DWORD value under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths, but regedit said "Cannot create value: Error writing to the registry". I already tried taking ownership of the keys, and giving my user account (and Administrators) full control permissions, but I still get the same error. How do I unlock the Defender registry keys so I can add the Fonts folder to Paths? I also tried running a .bat file containing "REG ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Windows\Fonts" /t REG_DWORD /d 0 /f" as SYSTEM (via Task Scheduler), but got error 0x80070001.
    Last edited by Stargate38; 17 Sep 2017 at 19:19. Reason: more info
      My ComputerSystem Spec


Related Threads
"Add an exclusion" not selectable in Windows Defender in AntiVirus, Firewalls and System Security
For many years, I have used a custom "Hosts" file. I have read that Windows Defender will occasionally find that custom file and reinstall original. When I log on as administrator, the "Add an exclusion" line is gray and not a clickable link. ...
Hello, I wonder if I can delete all fonts, but keep the system fonts (which available when we install a clean windows 10. I notice that there ware about 200-250 fonts, but now is over than 1200 fonts) ? p/s: If you wants these fonts, I can send...
Hello. Using BitDefender. Cant seem to activate Windows Defender (also). Does Bit Defender prohibit Windows Defender from being activated ? Any idea why I can't activate ? Assuming I can, somehow, do I want both ?
Hello. I have been using windows 10 since a little after it came out, and I am and always have been fond of the Windows + D shortcut. For those who don't know, this shows the desktop and minimizes all programs. I would like to know if it is...
With Windows 7 it was possible to change the fonts used by Windows for title bar, menus, popups, etc... This way I could get rid of "anti-aliased" fonts such as Segoe UI that are blurry and use "aliased" fonts such as Tahoma that are sharper and...
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 07:18.
Find Us