Samsung Drive: Unleashing Performance on PC

Microsoft Investigates Issue Impacting Samsung Laptops Running Windows 11

Microsoft is currently looking into a new problem affecting certain Samsung laptops that are running Windows 11. This issue arises after the installation of the February 2026 security updates, causing users to lose access to their C:\ drive and rendering them unable to launch various applications.

The tech giant has stated that it is collaborating with Samsung to determine whether the issue stems from the Windows updates or Samsung software installed on the affected devices.

Users experiencing this issue may encounter an error message stating, ‘C:\ is not accessible – Access denied’, which restricts access to files and hinders the launch of specific applications like Outlook, Office apps, web browsers, system utilities, and Quick Assist, as explained by Microsoft.

These errors can surface during regular Windows operations on Samsung devices, such as when accessing files, launching applications, or carrying out administrative tasks. In some instances, permission problems may impede users from elevating privileges, uninstalling updates, or accessing logs.

The problem has predominantly been reported in Brazil, Portugal, South Korea, and India, primarily impacting Samsung Galaxy Book 4 and other Samsung consumer devices.

According to Microsoft’s latest investigation, the issue may be linked to the Samsung Share application, although the exact root cause has yet to be confirmed.

Currently, this issue affects systems running Windows 11 versions 25H2 and 24H2.

Although Microsoft has not provided a temporary solution, a Reddit user claiming to be a Samsung technician in Brazil has shared a workaround that some affected users claim restores access to the C:\ drive.

However, it is important to note that implementing the workaround involves changing the ownership of the entire C:\ drive and all subfolders to the “Everyone” group, including system directories and files that are typically owned by TrustedInstaller or SYSTEM.

Changing ownership of system files in this manner can compromise Windows’ built-in security protections. Therefore, users are advised to refrain from applying the workaround unless absolutely necessary and instead await a fix from Microsoft.

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