This issue is frequently caused by browser extensions, particularly Internet Download Manager (IDM). To fix this problem, you must take the following steps:
- Remove all extensions from your browser.
- Open the Windows Registry Editor (regedit) and search for "ExtensionManifestV2Availability." Delete the relevant key.
3- Reinstall your preferred extensions one by one, checking after each installation whether the message "your browser is managed by your organization" reappears. Once you've identified the responsible extension, remove it from the browser and repeat step 2.
If the IDM extension was the culprit, follow these steps:
1- remove the related extension and close the Chrome.
2- Delete the registry key associated with "ExtensionManifestV2Availability" from the Windows registry (regedit).
3- open the IDM desktop software, and navigate to the "Options" menu.
4- Uncheck "Extend the availability of manifest 2 chrome extensions".
5- Also, uncheck the "Google Chrome" option in the section labeled "Capture downloads from the following browsers".
6- Reinstall the IDM extension for Google Chrome manually by dragging and dropping the file named "IDMGCExt.crx" (located in the C:\Program Files (x86)\Internet Download Manager folder) onto the Google Chrome Extensions page.
7- Finally, go back to the IDM desktop software, and recheck the "Google Chrome" option in the "Capture downloads from the following browsers" section.