Welcome to the new FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
If you are having a problem, please check the Help Center for known solutions.
Need technical support from FlexRadio? It's as simple as Creating a HelpDesk ticket.

SmartSDR installations on Windows 11

Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin
edited October 6 in SmartSDR for Windows

New Windows 11 Installations: 

SmartSDR for Windows v3.2.39 and v2.7.6 are supported on new installations of Windows 11. Just install SmartSDR for Windows on your PC and follow the prompts.  Reboot the PC once the installation finishes.

Upgrades from Windows 10 to Windows 11:

1.) We have reports from several customers with issues upgrading from Windows 10 to Windows 11 where the FlexRadio VSP drivers are not re-installed correctly.

The fix for this is straightforward

  1. Download the current version of SmartSDR (3.2.39 or 2.7.6 as of today) for the version of SmartSDR your radio is licensed to use.
  2. Run the SmartSDR for Windows installer.  This should correct the issue with the VSP drivers by reinstalling them.  

2.) You may also experience a Windows STOP error (known as BSoD or GSoD) related to portctl.sys upon the first reboot. This is due to DAX being reinstalled as part of the Windows 11 upgrade process and should only happen once.

Please submit a helpdesk ticket if you encounter any issues with running SmartSDR, DAX, or CAT after performing the Windows 11 upgrade. https://helpdesk.flexradio.com/hc/en-us/requests/new

If you are considering upgrading to Windows 11, please follow Microsoft’s guidelines and only install Windows 11 on supported hardware.  Do not force an install on unsupported hardware. 



  • kx4m
    kx4m Member
    Confirmed - worked fine after following these instructions.

  • W4AFK Bruno
    W4AFK Bruno Member ✭✭

    My experience - Upgraded my ham radio computer to Windows 11 (the only one I have that supports Windows 11 LOL) and all went very well. My 6400 is remote (2684 miles away) and I rely on SmartLink. I only had to re-login to SmartLink after the update, but everything worked just as well as when I was running Windows 10.

    I will not update my 5-year old Microsoft Surface Pro 4, which I use to access my 6400 when not at home, as per Microsoft, it's not supported. In any event, SmartLink works just fine in Windows 10 Pro on the Surface Pro 4, so I will NOT "break it" :-)

  • on5po
    on5po Member ✭✭

    Hello, I just took win 11, installation without problems, functioning of my flex 6700 v2.7.6 without problems, or I have a problem with HRD logbook and cluster, error 0xc000012f

    C: /WINDOWS/SYSTEM32/vccorlib140.DLL is not designed to run on windows or contains an error

    I removed HRD then resumed on their site, without result, impossible to access these two windows,

    who would have the solution

    Thank you

    on5po, Jaqnny

  • on5po
    on5po Member ✭✭

    Hello everyone, the problem with HRD logbook, is solved, I changed cluster, and it works, there is a window that appears sytem32, but does not disturb the operation, as explained in the previous post


  • Grant VK4JAZ
    Grant VK4JAZ Member ✭✭
    I upgraded my laptop to Windows 11 (form 10) before downloading and installing SmartSDR. I am a remote user of my club's 6400; they told me to install v 3.2.37, which I did. All went remarkably smoothly and I was up and running without a hitch. I am still learning to use the 6400 and it's a steep learning curve, but nothing to do with Windows 11.
  • on5po
    on5po Member ✭✭

    Hello everyone,

    I can write that win 11 works correctly keeping only this window appears from time to time, but does not interfere with the use, appears when opening wi11.

    Sorry for the image upside down,

    if someone can tell me where it comes from or how to remove it, if not, i will wait for the next update


    on5po, Janny

  • Erik Carling EI4KF
    Erik Carling EI4KF Member ✭✭✭

    At a guess, so I might be wrong, you have Adobe Acrobat on your computer. If this is not the case, read no further. If it is then either reinstall Acrobat to see if that fixes it, or uninstall Acrobat to check for a resolution, or look to see if you have Microsoft Visual C++ installed and up-to-date. Ideally you need up to and including the 2019 C++ version which for 64bit machines is here: https://aka.ms/vs/16/release/vc_redist.x64.exe

  • on5po
    on5po Member ✭✭

    Thanks Erik,

    I uninstalled "abobe acrobat" without results, I think the best is to wait for the next "update" since, this has no effect on the operation of the programs,

    Thank you for your help


  • Patrick
    Patrick WH6HI KauaiMember ✭✭✭

    I think this might be a Windows Registry problem. There are nice apps that help with this. Clean My PC is one Restoro is one but is very intrusive but affective.

Leave a Comment

Rich Text Editor. To edit a paragraph's style, hit tab to get to the paragraph menu. From there you will be able to pick one style. Nothing defaults to paragraph. An inline formatting menu will show up when you select text. Hit tab to get into that menu. Some elements, such as rich link embeds, images, loading indicators, and error messages may get inserted into the editor. You may navigate to these using the arrow keys inside of the editor and delete them with the delete or backspace key.