Overview
- Microsoft and Samsung identified the Samsung Galaxy Connect app as the trigger for C: drive access failures on select devices.
- To contain new cases, Microsoft pulled the app from the Microsoft Store and Samsung published a previously stable version.
- The issue surfaces primarily on Galaxy Book 4 laptops and certain Samsung desktops running Windows 11 24H2 or 25H2, with specific model lines listed by Microsoft.
- Affected users see “C:\ is not accessible – Access denied,” blocking files and stopping apps like Outlook, Office tools, browsers, system utilities and Quick Assist.
- There is no simple universal fix for impacted machines, and users are advised to contact Samsung support as both companies work on further remedies.