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C: Drive Inaccessible on Samsung Devices [Fixed]

Last Updated on: March 25, 2026 by Ramesh

c: drive inaccessible after 2026-03 LCU on Samsung devices

After installing the February 2026 or March 2026 Cumulative Update, the C: drive may become inaccessible on some Samsung devices. Microsoft has acknowledged this issue. Please see the Windows Known Issues page: Windows 11, version 25H2 known issues and notifications | Microsoft Learn

Also, you’re unable to run Task Manager (taskmgr.exe). You receive the error “Windows cannot access C:\Windows\System32\taskmgr.exe“. Command Prompt (admin) and other tools don’t work.

The affected Samsung models are NP750XGJ, NP750XGL, NP754XGJ, NP754XFG, NP754XGK, DM500SGA, DM500TDA, DM500TGA, and DM501SGA.

Windows 11 Upgrade: Software License Terms – Error encountered

Published on: March 16, 2026 by Ramesh

When you install the latest Windows 11 Feature Update via Windows Update, the following error message may occur:

Software License Terms

Error encountered.

How to Install a Windows 11 Update Offline using .MSU file

Published on: March 15, 2026 by Ramesh

You can install a cumulative update offline using the MSU file. On Windows 11 24H2 and higher, to install a cumulative update offline, you need to download both the checkpoint update’s (KB5043080) MSU file and the latest cumulative update’s MSU file.Read more

Microsoft Support Diagnostic Tool (msdt.exe) asks for a Passkey

Last Updated on: March 16, 2026 by Ramesh

MSDT stands for Microsoft Support Diagnostic Tool. This tool was previously used by Microsoft technical support to analyze diagnostic data for troubleshooting remotely. MSDT.exe can also run built-in troubleshooters, such as the Audio troubleshooter and the Windows Update troubleshooter. Why does msdt.exe ask for a Passkey? When you run msdt.exe without any command-line arguments, it … Read more

File Explorer Freezes When Selecting a Library

Published on: March 14, 2026 by Ramesh

Clicking a library freezes File Explorer

When you select a library in the left pane of File Explorer in Windows 10 or 11, the cursor turns into a blue circle, and File Explorer freezes. Deleting the libraries and restoring the default libraries does not resolve the issue.Read more

Errors 0x800703fa and 0x80071a2d when installing Cumulative Update

Published on: March 13, 2026 by Ramesh

The latest Windows 10 cumulative update may fail with error code 0x800703fa. Many users are experiencing this issue when installing the KB5066791 update (October 14, 2025) or earlier. Installing it using the .MSU file from the Microsoft Update Catalog may not work either.Read more

White line appears under the Address Bar in File Explorer

Published on: March 12, 2026 by Ramesh

When you open a folder, a white line may appear under the address bar, as shown in the image below. The white line is glaringly noticeable when the user interface is in dark mode.Read more

Guarded Host is preventing hibernation on this system

Published on: March 11, 2026 by Ramesh

If the hibernate option is missing in the Shutdown flyout in the Start menu, the feature may have been turned off or disabled by an internal component. If you enable hibernation using the powercfg /h on command or configure hibernation using the powercfg /h /type full command, the following error may occur:

Hibernation failed with the following error: The request is not supported.

The following items are preventing hibernation on this system.
        An internal system component has disabled hibernation.
                Guarded Host

[Fix] Microsoft Store Error 0x8024500c

Published on: March 11, 2026 by Ramesh

Microsoft Store error 0x8024500c when installing or updating apps

When you try to install or update an app in the Microsoft Store, the error code 0x8024500c may occur. Here’s the full error message verbatim:

Turn on Windows Update

This install is prevented by policy. Ask your admin to enable Windows Update.

Code: 0x8024500C

[Fix] Duplicate OneDrive Icon in File Explorer

Published on: March 10, 2026 by Ramesh

When you open File Explorer, you may notice two instances of the OneDrive icon in the navigation pane. The first one may appear as “OneDrive” and the other one as “OneDrive – Personal”, both containing the same set of files and folders. You wonder how to remove the duplicate OneDrive entry.
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