April 7, 2024 at 11:42AM
Microsoft has introduced a Windows driver in the February updates for Windows 10 and Windows 11, named UCPD.sys, which prevents users from manually changing the default browser using tools like SetUserFTA and SetDefaultBrowser. This driver locks down UserChoice Registry keys, affecting protocols and file associations. The change may relate to compliance with the European Digital Markets Act, but it has also been rolled out to non-EEA countries, raising questions about its true purpose.
Based on the meeting notes, the key takeaways are:
1. Microsoft has introduced a Windows driver (UCPD.sys) as part of the February updates for Windows 10 and Windows 11 which prevents users from manually changing default browser settings and file associations.
2. The driver locks down the UserChoice Registry keys associated with URL associations and file extensions, preventing direct editing of these settings.
3. IT consultant Christoph Kolbicz discovered the driver’s impact on Registry keys and developed ways to disable it, which requires administrative permissions and a reboot.
4. A scheduled task named ‘UCPD velocity’ automatically enables the driver again if disabled, making it necessary to delete/disable the task alongside turning off the driver via the Registry.
5. There are speculations that this change could be related to complying with Europe’s Digital Markets Act (DMA) which aims to promote fair competition and prevent anti-competitive practices by large companies, including Microsoft.
6. The introduction of the driver to Windows 10 and 11 devices in the USA, not subject to the DMA act, raises doubts about the theory that the move is solely for compliance with the DMA regulations.
This summary captures the key points discussed in the meeting notes regarding the introduction of the new Windows driver and its implications in relation to browser and file association settings.