Visual Studio 2019 error - Unable to download installation files, check your internet connection and try again.

Question

Visual Studio 2019 error - Unable to download installation files, check your internet connection and try again.

Anonymus King 16

I have problem with VS 2019.
I download and run installation and got error
"Unable to download installation files. Check your internet connection and try again."
I did all ways to fix and nothing (offline install, install certificat...)

Anna Xiu-MSFT 31,041 Reputation points Microsoft External Staff

2021-01-04T03:01:41.54+00:00
Hi @Anonymus King ,

Thank you for reporting it in Microsoft Q&A.

Please have a try with the following steps:

Run your Services.msc as administrator;

Locate the “CNG Key Isolation” service and open it;

Change the “Startup type” option to “Manual” and start it;

Download the Visual Studio and try again.

Sincerely,
Anna

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Anonymus King 16 Reputation points

2021-01-06T13:41:42.777+00:00

Nothing again, i got same problem
Programy na zlecenie 1 Reputation point

2021-03-11T05:08:30.43+00:00

i have this same problem. I use windows 7, but visual studio 2015, 2017 and 2019 (online and offline) take this same results. Any answer?
cormac garvey 1 Reputation point

2021-07-16T12:13:41.483+00:00

have similar issue. Need to use offline install to install on corporate win server 2016 standard where direct internet access not permitted.

i have followed all instructions outlined here:

https://learn.microsoft.com/en-us/visualstudio/install/create-an-offline-installation-of-visual-studio?view=vs-2019

i am using the bootstrapper vs_community__246848175.1614096480.exe and renaming it to vs_community.exe
i
i am installing from command line with:

c:\vslayout\vs_community.exe --noweb --add Microsoft.VisualStudio.Workload.ManagedDesktop --add Microsoft.VisualStudio.Workload.NetWeb --add Component.GitHub.VisualStudio --includeOptional

the CNG ley isolation is set to manual and is running.

the install log shows that visual studio is still trying to download files even though this is offline installation and all required files should be in the directory already.

some of the last fails in the log are........

[13a4:00af][2021-07-16T14:07:26] Sleeping 10000 milliseconds before retrying download.
[13a4:00af][2021-07-16T14:07:36] Attempting download 'https://download.visualstudio.microsoft.com/download/pr/47307962-b1d2-4f9f-b026-d43bdd2e4cd5/a764816361f6b75630e74885f2487b00eb45094355e0d195c7a39843610c2e32/Microsoft.PythonTools.LiveShare.Vsix.Resources.ENU.vsix' using engine 'WinInet'
[13a4:00af][2021-07-16T14:07:36] Error in 'InternetOpenUrl' with '12029' - 'Unknown error 12029'.
[13a4:00af][2021-07-16T14:07:36] WinInet error 'UnknownError' Function: InternetOpenUrl, HR: -2147012867, Message: Unknown error 12029 - proxy setting '
Metox 6 Reputation points

2022-12-04T00:52:42.027+00:00

Hello, I have the same problem with installation. I am traying to install VS but when I start installation the installation line stay always on 0%. My internet is fine, I use Windows 7.
GizmoGear 0 Reputation points

2023-06-18T12:21:27.23+00:00

I have the same problem on Windows 11 - I did everything but no luck.

Any help will be appreciated!
jivko ivanov 0 Reputation points

2023-11-29T17:47:22.34+00:00

The same ERROR for me! And no solution for this problem.

Win 7 / 64 ultimate.
jivko ivanov 0 Reputation points

2023-11-29T20:59:28.47+00:00

Solved!!!

Installing all important updates in Win7 solved the problem.
Kenneth Hayes 5 Reputation points

2025-02-13T15:57:12.1433333+00:00

I am on Windows 11 Professional and just installed (Feb 12) latest windows update. Up to this point VSC 2022 ran OK. Tried to run VS Community 2022 today (Feb 13) - it failed. I couldn't even get the installer to run (something about not finding devenv.exe). It appears that an VSC update has failed (a guess, no proof). I did the Services.msc stuff mentioned in your reply; no good. Whenever I run the installer now I still get internet connection problem message. BTW my internet connection is fine. The last windows update was 2025-02 Cumulative Update for Windows 11 Version 23H2 for x64-based Systems (KB5051989). A large part of my work is developing code at home - if VSC does not work on my PC I am bereft of an occupation and more importantly, wages. My initial urge was to uninstall/reinstall. I tried this with VSC 2019 (also on my PC) - it failed. I assumed it would do the same with VSC 2022. WHAT DO I DO NOW????
Kenneth Hayes 5 Reputation points

2025-02-13T16:10:54.5466667+00:00

I mentioned that a VSC 2022 update may have failed, note that I did not instigate and update. If it tried and failed it was nothing to do with me!
junaid khan 0 Reputation points

2025-05-09T06:02:32.4533333+00:00
I am encountering two issues with Visual Studio 2022:

NuGet Package Source Error – When attempting to add a package from NuGet.org, I receive an error stating that the URL https://api.nuget.org/v3/index.json cannot be loaded. The URL does not load in my browser either, although it works when I use a VPN.

**then i make new window for my laptop then facing this issuse

Unable to download installation files** – I am receiving an error message prompting me to check my internet connection and try again. This occurs despite Visual Studio 2022 being already installed.

Could you please assist in resolving these issues?
M. Rohaan 0 Reputation points

2025-06-09T11:13:39.03+00:00

I have Same Problem I Tried Every Fix But Nothing Happened My WIndows Version IS 11

3 answers

Your answer

Anna Xiu-MSFT 31,041 Reputation points Microsoft External Staff

2021-01-04T03:01:41.54+00:00

Hi @Anonymus King ,

Thank you for reporting it in Microsoft Q&A.

Please have a try with the following steps:

Run your Services.msc as administrator;

Locate the “CNG Key Isolation” service and open it;

Change the “Startup type” option to “Manual” and start it;

Download the Visual Studio and try again.

Sincerely,
Anna

If the answer is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.
Anonymus King 16 Reputation points

2021-01-06T13:41:42.777+00:00

Nothing again, i got same problem
Programy na zlecenie 1 Reputation point

2021-03-11T05:08:30.43+00:00

i have this same problem. I use windows 7, but visual studio 2015, 2017 and 2019 (online and offline) take this same results. Any answer?
cormac garvey 1 Reputation point

2021-07-16T12:13:41.483+00:00

have similar issue. Need to use offline install to install on corporate win server 2016 standard where direct internet access not permitted.

i have followed all instructions outlined here:

https://learn.microsoft.com/en-us/visualstudio/install/create-an-offline-installation-of-visual-studio?view=vs-2019

i am using the bootstrapper vs_community__246848175.1614096480.exe and renaming it to vs_community.exe
i
i am installing from command line with:

c:\vslayout\vs_community.exe --noweb --add Microsoft.VisualStudio.Workload.ManagedDesktop --add Microsoft.VisualStudio.Workload.NetWeb --add Component.GitHub.VisualStudio --includeOptional

the CNG ley isolation is set to manual and is running.

the install log shows that visual studio is still trying to download files even though this is offline installation and all required files should be in the directory already.

some of the last fails in the log are........

[13a4:00af][2021-07-16T14:07:26] Sleeping 10000 milliseconds before retrying download.
[13a4:00af][2021-07-16T14:07:36] Attempting download 'https://download.visualstudio.microsoft.com/download/pr/47307962-b1d2-4f9f-b026-d43bdd2e4cd5/a764816361f6b75630e74885f2487b00eb45094355e0d195c7a39843610c2e32/Microsoft.PythonTools.LiveShare.Vsix.Resources.ENU.vsix' using engine 'WinInet'
[13a4:00af][2021-07-16T14:07:36] Error in 'InternetOpenUrl' with '12029' - 'Unknown error 12029'.
[13a4:00af][2021-07-16T14:07:36] WinInet error 'UnknownError' Function: InternetOpenUrl, HR: -2147012867, Message: Unknown error 12029 - proxy setting '
Metox 6 Reputation points

2022-12-04T00:52:42.027+00:00

Hello, I have the same problem with installation. I am traying to install VS but when I start installation the installation line stay always on 0%. My internet is fine, I use Windows 7.
GizmoGear 0 Reputation points

2023-06-18T12:21:27.23+00:00

I have the same problem on Windows 11 - I did everything but no luck.

Any help will be appreciated!
jivko ivanov 0 Reputation points

2023-11-29T17:47:22.34+00:00

The same ERROR for me! And no solution for this problem.

Win 7 / 64 ultimate.
jivko ivanov 0 Reputation points

2023-11-29T20:59:28.47+00:00

Solved!!!

Installing all important updates in Win7 solved the problem.
Kenneth Hayes 5 Reputation points

2025-02-13T15:57:12.1433333+00:00

I am on Windows 11 Professional and just installed (Feb 12) latest windows update. Up to this point VSC 2022 ran OK. Tried to run VS Community 2022 today (Feb 13) - it failed. I couldn't even get the installer to run (something about not finding devenv.exe). It appears that an VSC update has failed (a guess, no proof). I did the Services.msc stuff mentioned in your reply; no good. Whenever I run the installer now I still get internet connection problem message. BTW my internet connection is fine. The last windows update was 2025-02 Cumulative Update for Windows 11 Version 23H2 for x64-based Systems (KB5051989). A large part of my work is developing code at home - if VSC does not work on my PC I am bereft of an occupation and more importantly, wages. My initial urge was to uninstall/reinstall. I tried this with VSC 2019 (also on my PC) - it failed. I assumed it would do the same with VSC 2022. WHAT DO I DO NOW????
Kenneth Hayes 5 Reputation points

2025-02-13T16:10:54.5466667+00:00

I mentioned that a VSC 2022 update may have failed, note that I did not instigate and update. If it tried and failed it was nothing to do with me!
junaid khan 0 Reputation points

2025-05-09T06:02:32.4533333+00:00

I am encountering two issues with Visual Studio 2022:

NuGet Package Source Error – When attempting to add a package from NuGet.org, I receive an error stating that the URL https://api.nuget.org/v3/index.json cannot be loaded. The URL does not load in my browser either, although it works when I use a VPN.

**then i make new window for my laptop then facing this issuse

Unable to download installation files** – I am receiving an error message prompting me to check my internet connection and try again. This occurs despite Visual Studio 2022 being already installed.

Could you please assist in resolving these issues?
M. Rohaan 0 Reputation points

2025-06-09T11:13:39.03+00:00

I have Same Problem I Tried Every Fix But Nothing Happened My WIndows Version IS 11

Answer 1

Anna Xiu-MSFT 31,041 Microsoft External Staff

Hi @Anonymus King , could you tell me what your Windows version is? Please check for updates and ensure that all pending and recommended Windows Updates are completed. Then, retry the installation.

If it still persists, we need the related logs to investigate further. Please download and run this collect.exe tool, go to %temp% folder and find the vslogs.zip file, upload it to https://onedrive.live.com/ and share the link here.

Anonymus King 16 Reputation points

2021-01-07T09:11:14.253+00:00

I updated windows and working, ty very much
Anna Xiu-MSFT 31,041 Reputation points Microsoft External Staff

2021-01-07T09:48:56.577+00:00

Hi @Anonymus King , I will convert the comment above to answer to benefit more community members, please kindly accept the answer so other community members can find the solution more easily. Thank you for helping us build a better forum!
Aman Chandna 6 Reputation points

2021-02-04T10:08:58.417+00:00

HI I tried all the above things to install visual studio.
In services start up type to manual-DONE
collect.exe tool-Done
Windows update- Done

Still visual studio installer giving the same error Unable to downlaod installation files.Check your internet connection and try again.

Note: I am using a very good broadband connection of downloading speed upto 120mbps.

Answer 2

antanas bendoraitis 1

I changed my wifi „WLAN1-C9...“ network profile setting from public to private and when I started installer one more time it worked.

Answer 3

Dunc Sargent 1

I ran into the same error message, but it turns out that I had changed my TMP/TEMP environment variables to a non-existent place.

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Visual Studio 2019 error - Unable to download installation files, check your internet connection and try again.

3 answers

Your answer