Sunday, 11 October 2026

Windows 11 Update Bug Denies C Drive Access on Samsung Devices

A concerning Windows 11 bug is making the C drive inaccessible on select devices. Microsoft confirms some Samsung users are seeing "Access denied" errors after recent updates. Read on to understand the issue and what steps you should take.

Screenshot showing Windows File Explorer displaying an 'Access denied' error when trying to access the C: drive.
File Explorer window shows a pop-up error message stating that the C: drive is not accessible and access was denied.

Microsoft has stated that a nasty Windows 11 bug is causing the C drive to become inaccessible on select devices.

Windows 11 has been having an awful time with updates recently.

In January, it felt like a week had not gone by without something going wrong.

While February seemed a little quiet, the trend of strange Windows 11 bugs has continued into March.

Microsoft has confirmed that some Samsung devices are getting a “C: is not accessible – Access denied” error after installing the latest Windows 11 updates.