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I recently started having an issue on Windows 11 where when I try downloading a file, all of my browsers refuse to do so displaying this: (images are from Chrome)

Downloads example

As you can see, files that I try to download from my server are blocked no matter the extension, but one file with the same extension from colab.research.google.com works absolutely fine.

Here is the error expanded:

enter image description here

If that's relevant, I am downloading from my Jupyter Lab server, which has a link like: http://204.159.145.71:8888/lab/tree/ (maybe it doesn't like that it's http, or that it is an IP address, but it used to be fine).

This is really strange to me because I have all the safe browsing set to "disabled".

This really looks to me like some kind of restriction in the registry editor, but I have no idea where that may be hiding.

Any ideas on how I can fix this? Thanks.

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  • Is this error on downloads from one particular web-server?
    – harrymc
    Commented Oct 6, 2023 at 13:10
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    It may also be that they are not blocking your server specifically, but traffic over port 8888. If you have the ability to alter the port, maybe that will make it work again.
    – LPChip
    Commented Oct 6, 2023 at 13:37
  • @harrymc Seems to be, yeah. Other sites work fine as far as I can tell Commented Oct 6, 2023 at 14:38
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    Your IP department may have setup a port filter to block most ports and keep certain traffic only to standard ports, like 80 and 443.
    – LPChip
    Commented Oct 6, 2023 at 14:41
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    Try creating a new Chrome user profile, then download the file, if the download is still being downloaded then you have inadvertently allowed your company to apply Chromium AD group policies to your machine.
    – Ramhound
    Commented Oct 6, 2023 at 18:19

6 Answers 6

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This error is not all about Organizations and Policies. It may falsely come from a failed download take over by an extension. After a long time of headache I was able to solve this by disabling an extension. The culprit was the "IDM Integration Module" which connects Chrome/Edge to the "Internet Download Manager" software. You can disable this until a fix comes out.

Settings Menu > Extensions > Manage Extensions > IDM Integration Module > Disable

If you don't have IDM installed look for an extension which may want to manipulate or take over downloads.

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  • worked for me, thanks
    – mrbm
    Commented May 17 at 9:46
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Your computer is attached to organization domain. And admin deploy some group policies to deny specific downloads. You can't change/remove these limitations if you do not have admin/domain account.

What you can do is to contact support and raise a ticket about permit some downloads.

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    But this is my personal laptop, I am the admin 💀. Perhaps you could walk me through the process of removing those limitations? I have full access Commented Oct 6, 2023 at 14:37
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    @user9102437 even a laptop where you are the admin can still be managed, if your work placed it in their domain. The message suggests blocked by policy. You can try a different browser in combination with a VPN
    – LPChip
    Commented Oct 6, 2023 at 14:43
  • @LPChip I work from home, so it is my network too :) . But I tried using a VPN. Didn't help Commented Oct 6, 2023 at 14:48
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    @user9102437, did you add your working account there? Commented Oct 6, 2023 at 15:01
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    @LPChip Why do you keep tryna tell me that I need to contact the IT department. This is my house and I own the server, I AM the IT department💀 Commented Oct 11, 2023 at 14:13
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Up front: there is no "disabled" option for safe browsing in Chrome, are you sure you used the right setting?

Check if your PC is part of a Domain by using Powershell:

if ((gwmi win32_computersystem).partofdomain -eq $true) {write-host "DOM"} else {write-host "WG"}

If the output is DOM, you are not using a "personal" account, change your computer from Domain to workgroup.

If the output is WG then it depends on whether the file is downloaded or not:

  • if it is downloaded: the next step is to right-click the file in question. Under the general tab, towards the bottom right, is there an “unblock” option? If so, and it’s checked out, uncheck it, and try again.

  • if it's not downloaded:

    • Go to Google Chrome Settings
    • Select Privacy and Security
    • Select Security
    • Select the No protection (not recommended) option

Make sure you turn on the Standard protection after you’ve downloaded the blocked files.

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  • "No protection" is what I meant by "disabled", so this does not help the issue. But your code printed out "WG" Commented Oct 7, 2023 at 12:39
  • @user9102437 Are the files being downloaded at all? Maybe as a temporary file or into a temp directory etc.?
    – Albin
    Commented Oct 7, 2023 at 13:17
  • No, chrome refuses to even start, if I open chrome://downloads its just says: "Failed - Blocked" on this file. Its name is shown in grey and is not clickable. I can, however, click on the link and see the raw file's content. Commented Oct 7, 2023 at 21:26
  • @user9102437 so if you can see "raw file content" it means the download did start, can you please specify?!
    – Albin
    Commented Oct 8, 2023 at 17:42
  • No, this only opens on the website, kind of like raw content on github. If the file were to be actually downloaded, I would see something like file://filename.txt, but I see the link to the server instead. This means that is is treated just like a webpage. Commented Oct 11, 2023 at 7:40
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It does not matter if you are located with your personal computer in your personal network - you are most likely logged into your work environment. Within this framework you are bound by the restrictions of this environment, for instance Citrix.

If you operate outside of this environment on your personal computer within your network, you can do what you want.

If this is not possible from within your sandboxed environment you have contacted your IT department for additional rights.

But reading the above this is what you are obviously trying to avoid.

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As already suggested thi is because your organization has set up security policies to protect its devices and networks. These policies can block certain types of files from being downloaded, such as executable files (.exe), or files from specific websites.

A few reasons why your organization may have blocked the file:

The file is from a website that is known to be untrustworthy. The file type is blocked by your organization's security policy.

You can try the following if you are sure its safe:

  • Contact your IT administrator and ask them to unblock the file for you.
  • Try downloading the file from a different website.
  • download the file on a differnt device and transfer via USB
  • Rename the file extension to one that is not blocked by your organization's security policy.

Does your company use anything like censornet? I know mine was blocking all downloads and certain "Non productive" sites like Amazon until I sweet talked the IT Manager to white list me ;-)

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It does not matter if you are located with your personal computer in your personal network - you are most likely logged into your work environment. Within this framework you are bound by the restrictions of this environment, for instance Citrix.

If you operate outside of this environment on your personal computer within your network, you can do what you want.

If your sandboxed environment does not give you the rights you would like to have you need to contact your IT department for additional rights.

But reading the above this is what you are obviously trying to avoid probably because you won't be granted this rights.

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  • This seems to be a slightly different version of your other answer. Did you mean to post two answers to this question? Commented May 4 at 18:28

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