How to Fix Ucrtbase.dll Missing Error on Windows 10/11

What Is Ucrtbase.dll?

Ucrtbase.dll is a core file in Microsoft Windows systems, part of the Microsoft Universal C Runtime (UCRT), and included in the Visual C++ Redistributable Package.

It is a runtime component required for the proper functioning of many Windows applications developed using C and C++.

This file provides critical system-level support functionality for applications. Therefore, many applications, games, and browsers rely on ucrtbase.dll to function correctly.

When ucrtbase.dll is missing, corrupted, or incompatible due to system updates or software conflicts, applications may fail to start or crash during runtime.

Common error messages include:

• ucrtbase.dll missing
• ucrtbase.dll not found
• ucrtbase.dll crashed

Now that you understand what ucrtbase.dll is and why it is important for Windows applications, let’s look at how to fix the ucrtbase.dll missing, not found, or crashing error.

How to Fix “DLLRegisterserver Was Not Found” Error on Windows 10

Have you come across the “DLLRegisterserver was not found” error? Now, you come to the right place. This post summarizes 6 effective ways to fix the error.

Read More

How to Fix Ucrtbase.dll Missing Error

If you are encountering the ucrtbase.dll missing error on Windows, you can fix it by following the methods below.

Try them one by one until the issue is resolved.

Fix 1: Run SFC Scan

Corrupted system files are a common cause of ucrtbase.dll missing or not found errors. Windows’ built-in System File Checker (SFC) tool can scan for and repair corrupted or missing system files, thus resolving program crashes caused by system file abnormalities.

Step 1: Type cmd in the search box, and choose Run as administrator on the right side.

Step 2: Type the sfc /scannow command and hit Enter.

Step 3: Wait for the scan to finish, then type dism /online /cleanup-image /restorehealth and press Enter.

After that, restart your computer.

Fix 2: Repair the Microsoft Visual C++ Redistributable

A corrupted Microsoft Visual C++ Redistributable is one of the common causes of ucrtbase.dll errors.

You can restore missing or faulty runtime components by repairing the runtime library.

Step 1: Press Windows + R to open the Run dialog, type appwiz.cpl, and hit Enter.

Step 2: Locate Microsoft Visual C++ Redistributable (you may see multiple years).

Step 3: Right-click the first item, select Change.

Step 4: In the new pop-up window, click Repair.

Repeat this for all listed Visual C++ Redistributable packages, then restart your PC.

Fix 3: Check for Windows Updates

Ucrtbase.dll is part of the Windows Runtime components. If this file is corrupted, outdated, or incompatible with a program, it may prevent applications from running correctly.

By installing the latest Windows updates, you can repair system files and resolve some errors related to ucrtbase.dll.

Step 1: Press the Windows + I keys to open Settings.

Step 2: Select Update & Security > Windows Update.

Step 3: Click Check for updates and wait for Windows to scan for available updates.

Restart your computer to apply the changes and check whether the ucrtbase.dll error has been resolved.

Fix 4: Perform System Restore

If the ucrtbased.dll error appeared after installing updates, drivers, or software, you can try using System Restore.

This feature can revert your system to a previous, properly functioning state, thereby fixing DLL errors caused by system changes.

Also read: What’s Windows 11/10 System Restore & How to Enable/Create/Use.

Ucrtbase.dll FAQ

Bottom Line

This article outlines several common methods for fixing errors caused by a missing or corrupted ucrtbased.dll file, such as checking for Windows updates and repairing system files.

If you have lost important files due to a system crash or program failure, you can also use the Data Recovery feature in MiniTool Partition Wizard to attempt to recover the lost data.