Nov 19th, 2025 at 10:01am (UTC)
 
 

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  VS Arduino › Visual Micro › Installation & Troubleshooting › PC rebuild wont allow Visual Micro to load
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Hot Topic (More than 8 Replies) PC rebuild wont allow Visual Micro to load (Read 208 times)
Trek19
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PC rebuild wont allow Visual Micro to load
Nov 13th, 2025 at 3:51pm
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AS my arduino development had slowed down considerably following a VS upgrade I did some PC house keeping using Ccleaner and was unable to use Visual Studio anymore, I had great difficulty re-installing it and could not Install version 2026 at all. Now I cant get Visual Micro to load.
Any advice, an error file from VXIX is enclosed which doesnt mean much to me.
Jim
  
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Simon@Visual Micro
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Re: PC rebuild wont allow Visual Micro to load
Reply #1 - Nov 13th, 2025 at 4:00pm
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Thanks for the report.

The log says the machine needs rebooting before the installer can run again.

Can you try restarting the PC and then see if it runs next time?
  
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Trek19
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Re: PC rebuild wont allow Visual Micro to load
Reply #2 - Nov 13th, 2025 at 4:10pm
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I closed VS and Re-started the PC a number of times.
  
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Simon@Visual Micro
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Re: PC rebuild wont allow Visual Micro to load
Reply #3 - Nov 13th, 2025 at 4:17pm
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Thanks, I hadn't realised that.

Can you try:-
1) Opening Visual Studio Installer.
2) Next to the affected Visual Studio instance, click More → Repair.

Then see if it is any better?
  
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Trek19
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Re: PC rebuild wont allow Visual Micro to load
Reply #4 - Nov 13th, 2025 at 4:27pm
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Done the repair several times as well.
  
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Simon@Visual Micro
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Re: PC rebuild wont allow Visual Micro to load
Reply #5 - Nov 13th, 2025 at 7:23pm
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Do you have a registry key set at the below location (assuming a 64bit install):
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\VisualStudio\Setup\Reboot

  
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Tim@Visual Micro
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Re: PC rebuild wont allow Visual Micro to load
Reply #6 - Nov 13th, 2025 at 9:09pm
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How are you installing? via downloaded vsix or from inside vs 2026 > extensions?

The original log shows that visual studio is confused about where to run its installer from. its trying to use the vs2022 folder on your pc.

Running the install of visual micro from inside visual studio 2026 should automatically use the correct version of the microsoft installer.

If using downloaded vsix file then right click it and click "Open With". Then navigate/browse to where the VS 2026 (devenv.exe) program is installed.

Does this help?
  
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Simon@Visual Micro
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Re: PC rebuild wont allow Visual Micro to load
Reply #7 - Nov 14th, 2025 at 9:46am
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Thanks for the details sent by email, and the registry shows this instance is still requesting reboot.

Option 1: Restart from VSInstaller
1) On the VSInstaller screenshot from your email you should be able to click restart from there which should clear the flag.

If this still doesn't work, you can open an issue with Microsoft directly about the problem (reccomended), or workaround this by forcing the removal of the flag (potentially risky).

Option 2: Force Clear of the Reboot Flag
NOTE - BE CAREFUL TO ONLY EDIT THE SPECIFIC KEY NEEDED
1) Navigate to the registry key as before.
2) Click File then Export to backup the keys
3) Change the value of the specific key for this installation (c3ad2f85) to 0 it should allow the installer to progress, though this is a workaround.
  
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Trek19
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Re: PC rebuild wont allow Visual Micro to load
Reply #8 - Nov 16th, 2025 at 4:10pm
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Thanks for all the help Simon, I think I have solved the problem.
So i was in a situation (probably something I did) where it seemed I had VS 2022 installed ok but I could not install VM by any means and Control Panel or Ccleaner could not be used to remove the VS 2022/2026 installed programmes to enable me to try a fresh installation.
The VS installer showed that I had VS 2022 installed and VS 2026 was waiting a restart to finnish the install, but a restart did not install VS 2026.
To resolve this I used the VS installer to remove the VS 2022 which left VS 2026 still waiting for a restart to install, which never happened. I then discovered  "C:\Program Files (x86)\Microsoft Visual Studio\Installer\InstallCleanup.exe".  This cleared the installer screen and I then was able to reinstall VS 2026 and to install VM from within VS 2026.
All I have to do now is upgrade my VM licence.
  
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Simon@Visual Micro
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Re: PC rebuild wont allow Visual Micro to load
Reply #9 - Nov 17th, 2025 at 12:47pm
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Thanks for confirming the issue is resolved, and detailing the InstallCleaner route to resolve it.
  
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